From df668b355253ad003396fd4ccb9f36ab48627bf1 Mon Sep 17 00:00:00 2001
From: Matthias Maier <tamiko@43-1.org>
Date: Fri, 4 May 2018 16:25:36 -0500
Subject: [PATCH] Require the current version of deal.II.

---
 doc/users/CMakeLists.txt.sample  | 2 +-
 doc/users/cmakelists.html        | 8 ++++----
 doc/users/testsuite.html         | 4 ++--
 examples/doxygen/CMakeLists.txt  | 2 +-
 examples/step-1/CMakeLists.txt   | 2 +-
 examples/step-10/CMakeLists.txt  | 2 +-
 examples/step-11/CMakeLists.txt  | 2 +-
 examples/step-12/CMakeLists.txt  | 2 +-
 examples/step-13/CMakeLists.txt  | 2 +-
 examples/step-14/CMakeLists.txt  | 2 +-
 examples/step-15/CMakeLists.txt  | 2 +-
 examples/step-16/CMakeLists.txt  | 2 +-
 examples/step-17/CMakeLists.txt  | 2 +-
 examples/step-18/CMakeLists.txt  | 2 +-
 examples/step-19/CMakeLists.txt  | 2 +-
 examples/step-2/CMakeLists.txt   | 2 +-
 examples/step-20/CMakeLists.txt  | 2 +-
 examples/step-21/CMakeLists.txt  | 2 +-
 examples/step-22/CMakeLists.txt  | 2 +-
 examples/step-23/CMakeLists.txt  | 2 +-
 examples/step-24/CMakeLists.txt  | 2 +-
 examples/step-25/CMakeLists.txt  | 2 +-
 examples/step-26/CMakeLists.txt  | 2 +-
 examples/step-27/CMakeLists.txt  | 2 +-
 examples/step-28/CMakeLists.txt  | 2 +-
 examples/step-29/CMakeLists.txt  | 2 +-
 examples/step-3/CMakeLists.txt   | 2 +-
 examples/step-30/CMakeLists.txt  | 2 +-
 examples/step-31/CMakeLists.txt  | 2 +-
 examples/step-32/CMakeLists.txt  | 2 +-
 examples/step-33/CMakeLists.txt  | 2 +-
 examples/step-34/CMakeLists.txt  | 2 +-
 examples/step-35/CMakeLists.txt  | 2 +-
 examples/step-36/CMakeLists.txt  | 2 +-
 examples/step-37/CMakeLists.txt  | 2 +-
 examples/step-38/CMakeLists.txt  | 2 +-
 examples/step-39/CMakeLists.txt  | 2 +-
 examples/step-4/CMakeLists.txt   | 2 +-
 examples/step-40/CMakeLists.txt  | 2 +-
 examples/step-41/CMakeLists.txt  | 2 +-
 examples/step-42/CMakeLists.txt  | 2 +-
 examples/step-43/CMakeLists.txt  | 2 +-
 examples/step-44/CMakeLists.txt  | 2 +-
 examples/step-45/CMakeLists.txt  | 2 +-
 examples/step-46/CMakeLists.txt  | 2 +-
 examples/step-47/CMakeLists.txt  | 2 +-
 examples/step-48/CMakeLists.txt  | 2 +-
 examples/step-49/CMakeLists.txt  | 2 +-
 examples/step-5/CMakeLists.txt   | 2 +-
 examples/step-50/CMakeLists.txt  | 2 +-
 examples/step-51/CMakeLists.txt  | 2 +-
 examples/step-52/CMakeLists.txt  | 2 +-
 examples/step-53/CMakeLists.txt  | 2 +-
 examples/step-54/CMakeLists.txt  | 2 +-
 examples/step-55/CMakeLists.txt  | 2 +-
 examples/step-57/CMakeLists.txt  | 2 +-
 examples/step-6/CMakeLists.txt   | 2 +-
 examples/step-7/CMakeLists.txt   | 2 +-
 examples/step-8/CMakeLists.txt   | 2 +-
 examples/step-9/CMakeLists.txt   | 2 +-
 tests/CMakeLists.txt             | 2 +-
 tests/setup_testsubproject.cmake | 2 +-
 62 files changed, 66 insertions(+), 66 deletions(-)

diff --git a/doc/users/CMakeLists.txt.sample b/doc/users/CMakeLists.txt.sample
index d2fa216820..b1ddd2e402 100644
--- a/doc/users/CMakeLists.txt.sample
+++ b/doc/users/CMakeLists.txt.sample
@@ -1,6 +1,6 @@
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 REQUIRED
+FIND_PACKAGE(deal.II 9.1.0 REQUIRED
   HINTS ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 DEAL_II_INITIALIZE_CACHED_VARIABLES()
diff --git a/doc/users/cmakelists.html b/doc/users/cmakelists.html
index 8c25359e4f..4d3da69019 100644
--- a/doc/users/cmakelists.html
+++ b/doc/users/cmakelists.html
@@ -65,7 +65,7 @@
 <pre class="cmake">
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 REQUIRED
+FIND_PACKAGE(deal.II 9.1.0 REQUIRED
   HINTS ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 DEAL_II_INITIALIZE_CACHED_VARIABLES()
@@ -272,7 +272,7 @@ In this case the top level <code>CMakeLists.txt</code> file may be:
 <pre class="cmake">
 # top level CMakeLists.txt
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
-FIND_PACKAGE(deal.II 9.0.0 REQUIRED)
+FIND_PACKAGE(deal.II 9.1.0 REQUIRED)
 
 DEAL_II_INITIALIZE_CACHED_VARIABLES()
 PROJECT(myproject)
@@ -500,7 +500,7 @@ The <code>DEAL_II_INITIALIZE_CACHED_VARIABLES</code> macro is responsible
 for setting up cached variables and has to invoked before the
 <code>PROJECT</code> call:
 <pre class="cmake">
-FIND_PACKAGE(deal.II 9.0.0 REQUIRED)
+FIND_PACKAGE(deal.II 9.1.0 REQUIRED)
 
 DEAL_II_INITIALIZE_CACHED_VARIABLES()
 
@@ -644,7 +644,7 @@ INSTALL(DIRECTORY run DESTINATION share/mycode/run)
 </p>
 
 <pre class="cmake">
-FIND_PACKAGE(deal.II 9.0.0 REQUIRED
+FIND_PACKAGE(deal.II 9.1.0 REQUIRED
   HINTS
     ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
     # You can specify additional hints for search paths here, e.g.
diff --git a/doc/users/testsuite.html b/doc/users/testsuite.html
index 135214e46e..dbf6b4e0c2 100644
--- a/doc/users/testsuite.html
+++ b/doc/users/testsuite.html
@@ -104,7 +104,7 @@ SET(TARGET step-1)
 SET(TARGET_SRC step-1.cc)
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
-FIND_PACKAGE(deal.II 9.0.0 REQUIRED
+FIND_PACKAGE(deal.II 9.1.0 REQUIRED
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 
@@ -209,7 +209,7 @@ tests/support/my_test_2.output</pre>
 # top-level CMakelists.txt
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
-FIND_PACKAGE(deal.II 9.0.0 REQUIRED
+FIND_PACKAGE(deal.II 9.1.0 REQUIRED
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 
diff --git a/examples/doxygen/CMakeLists.txt b/examples/doxygen/CMakeLists.txt
index d42924fd0d..8f884f4c1b 100644
--- a/examples/doxygen/CMakeLists.txt
+++ b/examples/doxygen/CMakeLists.txt
@@ -8,7 +8,7 @@ FILE(GLOB sources ${CMAKE_CURRENT_SOURCE_DIR}/*.cc)
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-1/CMakeLists.txt b/examples/step-1/CMakeLists.txt
index 215beaf81a..4b89e2bd41 100644
--- a/examples/step-1/CMakeLists.txt
+++ b/examples/step-1/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-10/CMakeLists.txt b/examples/step-10/CMakeLists.txt
index d4356244bb..868792c1cc 100644
--- a/examples/step-10/CMakeLists.txt
+++ b/examples/step-10/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-11/CMakeLists.txt b/examples/step-11/CMakeLists.txt
index 2590ea6b93..8591129b88 100644
--- a/examples/step-11/CMakeLists.txt
+++ b/examples/step-11/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-12/CMakeLists.txt b/examples/step-12/CMakeLists.txt
index 0fdb587d95..cae43e0cec 100644
--- a/examples/step-12/CMakeLists.txt
+++ b/examples/step-12/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-13/CMakeLists.txt b/examples/step-13/CMakeLists.txt
index d029a4a1b0..d79181f850 100644
--- a/examples/step-13/CMakeLists.txt
+++ b/examples/step-13/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-14/CMakeLists.txt b/examples/step-14/CMakeLists.txt
index f91b00a5ee..85a38d2bca 100644
--- a/examples/step-14/CMakeLists.txt
+++ b/examples/step-14/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-15/CMakeLists.txt b/examples/step-15/CMakeLists.txt
index f8f58bfe15..d9ce113efa 100644
--- a/examples/step-15/CMakeLists.txt
+++ b/examples/step-15/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-16/CMakeLists.txt b/examples/step-16/CMakeLists.txt
index d01c29d707..75204f2901 100644
--- a/examples/step-16/CMakeLists.txt
+++ b/examples/step-16/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-17/CMakeLists.txt b/examples/step-17/CMakeLists.txt
index fdb60287ce..3c47876450 100644
--- a/examples/step-17/CMakeLists.txt
+++ b/examples/step-17/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS
     ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../  $ENV{DEAL_II_DIR}
   )
diff --git a/examples/step-18/CMakeLists.txt b/examples/step-18/CMakeLists.txt
index 122268bdb1..8242f2242b 100644
--- a/examples/step-18/CMakeLists.txt
+++ b/examples/step-18/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS
     ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../  $ENV{DEAL_II_DIR}
   )
diff --git a/examples/step-19/CMakeLists.txt b/examples/step-19/CMakeLists.txt
index 55bb961a87..02c68f6690 100644
--- a/examples/step-19/CMakeLists.txt
+++ b/examples/step-19/CMakeLists.txt
@@ -26,7 +26,7 @@ SET(TARGET_RUN "")
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-2/CMakeLists.txt b/examples/step-2/CMakeLists.txt
index d86924aeff..abaf5b5694 100644
--- a/examples/step-2/CMakeLists.txt
+++ b/examples/step-2/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-20/CMakeLists.txt b/examples/step-20/CMakeLists.txt
index 7789b8c92f..6455750b65 100644
--- a/examples/step-20/CMakeLists.txt
+++ b/examples/step-20/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-21/CMakeLists.txt b/examples/step-21/CMakeLists.txt
index ce57268437..830cd5fea3 100644
--- a/examples/step-21/CMakeLists.txt
+++ b/examples/step-21/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-22/CMakeLists.txt b/examples/step-22/CMakeLists.txt
index 2fccdad8e8..d627c7ab74 100644
--- a/examples/step-22/CMakeLists.txt
+++ b/examples/step-22/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-23/CMakeLists.txt b/examples/step-23/CMakeLists.txt
index 76f55d65d8..475edd87cc 100644
--- a/examples/step-23/CMakeLists.txt
+++ b/examples/step-23/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-24/CMakeLists.txt b/examples/step-24/CMakeLists.txt
index e81eb5eea4..91b2a50fae 100644
--- a/examples/step-24/CMakeLists.txt
+++ b/examples/step-24/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-25/CMakeLists.txt b/examples/step-25/CMakeLists.txt
index 5a92a4ad07..a4d06cd435 100644
--- a/examples/step-25/CMakeLists.txt
+++ b/examples/step-25/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-26/CMakeLists.txt b/examples/step-26/CMakeLists.txt
index b868255984..65f2e94874 100644
--- a/examples/step-26/CMakeLists.txt
+++ b/examples/step-26/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-27/CMakeLists.txt b/examples/step-27/CMakeLists.txt
index 1b38b55f2b..6f2ba82f5f 100644
--- a/examples/step-27/CMakeLists.txt
+++ b/examples/step-27/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-28/CMakeLists.txt b/examples/step-28/CMakeLists.txt
index 79d30f66c1..16e67a3f72 100644
--- a/examples/step-28/CMakeLists.txt
+++ b/examples/step-28/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-29/CMakeLists.txt b/examples/step-29/CMakeLists.txt
index cd95259d27..28cde5d01e 100644
--- a/examples/step-29/CMakeLists.txt
+++ b/examples/step-29/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-3/CMakeLists.txt b/examples/step-3/CMakeLists.txt
index 13363e9a3d..ecbea5ffce 100644
--- a/examples/step-3/CMakeLists.txt
+++ b/examples/step-3/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-30/CMakeLists.txt b/examples/step-30/CMakeLists.txt
index fb67b77b2c..20a31603e9 100644
--- a/examples/step-30/CMakeLists.txt
+++ b/examples/step-30/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-31/CMakeLists.txt b/examples/step-31/CMakeLists.txt
index fc9928924c..bdc4e90d2d 100644
--- a/examples/step-31/CMakeLists.txt
+++ b/examples/step-31/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-32/CMakeLists.txt b/examples/step-32/CMakeLists.txt
index a7f13c9baa..9bb0e259df 100644
--- a/examples/step-32/CMakeLists.txt
+++ b/examples/step-32/CMakeLists.txt
@@ -26,7 +26,7 @@ SET(CLEAN_UP_FILES *.vtu *.pvtu *.visit)
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-33/CMakeLists.txt b/examples/step-33/CMakeLists.txt
index 7d979baeba..59ae8864de 100644
--- a/examples/step-33/CMakeLists.txt
+++ b/examples/step-33/CMakeLists.txt
@@ -26,7 +26,7 @@ SET(TARGET_RUN ${TARGET} input.prm)
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-34/CMakeLists.txt b/examples/step-34/CMakeLists.txt
index 8000283474..fb005d0185 100644
--- a/examples/step-34/CMakeLists.txt
+++ b/examples/step-34/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-35/CMakeLists.txt b/examples/step-35/CMakeLists.txt
index a88f2d71cf..8b67753036 100644
--- a/examples/step-35/CMakeLists.txt
+++ b/examples/step-35/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-36/CMakeLists.txt b/examples/step-36/CMakeLists.txt
index dea42483f9..70a4438f76 100644
--- a/examples/step-36/CMakeLists.txt
+++ b/examples/step-36/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-37/CMakeLists.txt b/examples/step-37/CMakeLists.txt
index 49d865106e..82942f93e5 100644
--- a/examples/step-37/CMakeLists.txt
+++ b/examples/step-37/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-38/CMakeLists.txt b/examples/step-38/CMakeLists.txt
index 8954f580be..b3caaf101d 100644
--- a/examples/step-38/CMakeLists.txt
+++ b/examples/step-38/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-39/CMakeLists.txt b/examples/step-39/CMakeLists.txt
index f9b971d928..f59995d29f 100644
--- a/examples/step-39/CMakeLists.txt
+++ b/examples/step-39/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-4/CMakeLists.txt b/examples/step-4/CMakeLists.txt
index 18bd80f909..4b5b1c651b 100644
--- a/examples/step-4/CMakeLists.txt
+++ b/examples/step-4/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-40/CMakeLists.txt b/examples/step-40/CMakeLists.txt
index 90b1efa4f4..75c4c132e8 100644
--- a/examples/step-40/CMakeLists.txt
+++ b/examples/step-40/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-41/CMakeLists.txt b/examples/step-41/CMakeLists.txt
index bdd46250cc..46724a2193 100644
--- a/examples/step-41/CMakeLists.txt
+++ b/examples/step-41/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-42/CMakeLists.txt b/examples/step-42/CMakeLists.txt
index 34b9aab7cd..cc641088bf 100644
--- a/examples/step-42/CMakeLists.txt
+++ b/examples/step-42/CMakeLists.txt
@@ -26,7 +26,7 @@ SET(CLEAN_UP_FILES *.vtu *.pvtu *.visit)
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-43/CMakeLists.txt b/examples/step-43/CMakeLists.txt
index d6911b6a78..88ac362120 100644
--- a/examples/step-43/CMakeLists.txt
+++ b/examples/step-43/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-44/CMakeLists.txt b/examples/step-44/CMakeLists.txt
index 77aa8e8164..ecbba0d553 100644
--- a/examples/step-44/CMakeLists.txt
+++ b/examples/step-44/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-45/CMakeLists.txt b/examples/step-45/CMakeLists.txt
index 84f29e20a1..57b9b20c5b 100644
--- a/examples/step-45/CMakeLists.txt
+++ b/examples/step-45/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-46/CMakeLists.txt b/examples/step-46/CMakeLists.txt
index 84112d9a22..6d4bc9e473 100644
--- a/examples/step-46/CMakeLists.txt
+++ b/examples/step-46/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-47/CMakeLists.txt b/examples/step-47/CMakeLists.txt
index 7f78fc6eea..4b1d0dc89f 100644
--- a/examples/step-47/CMakeLists.txt
+++ b/examples/step-47/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-48/CMakeLists.txt b/examples/step-48/CMakeLists.txt
index c2f165ce5b..55feb1b643 100644
--- a/examples/step-48/CMakeLists.txt
+++ b/examples/step-48/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-49/CMakeLists.txt b/examples/step-49/CMakeLists.txt
index 9df1986e3e..f31ff728fe 100644
--- a/examples/step-49/CMakeLists.txt
+++ b/examples/step-49/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-5/CMakeLists.txt b/examples/step-5/CMakeLists.txt
index 37f2917293..d86903ee36 100644
--- a/examples/step-5/CMakeLists.txt
+++ b/examples/step-5/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-50/CMakeLists.txt b/examples/step-50/CMakeLists.txt
index 51e7e449ad..58b0d6532a 100644
--- a/examples/step-50/CMakeLists.txt
+++ b/examples/step-50/CMakeLists.txt
@@ -26,7 +26,7 @@ SET(CLEAN_UP_FILES *.vtu *.pvtu *.visit)
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-51/CMakeLists.txt b/examples/step-51/CMakeLists.txt
index 98667528f2..2e00a20d3f 100644
--- a/examples/step-51/CMakeLists.txt
+++ b/examples/step-51/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-52/CMakeLists.txt b/examples/step-52/CMakeLists.txt
index 2f1edfda84..99f2594d4c 100644
--- a/examples/step-52/CMakeLists.txt
+++ b/examples/step-52/CMakeLists.txt
@@ -26,7 +26,7 @@ SET(CLEAN_UP_FILES *.vtu)
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-53/CMakeLists.txt b/examples/step-53/CMakeLists.txt
index 8a67e9d409..44f034ba4f 100644
--- a/examples/step-53/CMakeLists.txt
+++ b/examples/step-53/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-54/CMakeLists.txt b/examples/step-54/CMakeLists.txt
index 3b5ca8d6c4..940e358f67 100644
--- a/examples/step-54/CMakeLists.txt
+++ b/examples/step-54/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-55/CMakeLists.txt b/examples/step-55/CMakeLists.txt
index 97845e428f..62d705e053 100644
--- a/examples/step-55/CMakeLists.txt
+++ b/examples/step-55/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-57/CMakeLists.txt b/examples/step-57/CMakeLists.txt
index b15c12f06f..8d2c56950c 100644
--- a/examples/step-57/CMakeLists.txt
+++ b/examples/step-57/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-6/CMakeLists.txt b/examples/step-6/CMakeLists.txt
index 7ac3bdfdef..f20bf08bf0 100644
--- a/examples/step-6/CMakeLists.txt
+++ b/examples/step-6/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-7/CMakeLists.txt b/examples/step-7/CMakeLists.txt
index b121ba4a9a..8dbfedd11c 100644
--- a/examples/step-7/CMakeLists.txt
+++ b/examples/step-7/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-8/CMakeLists.txt b/examples/step-8/CMakeLists.txt
index 9b4739a4e4..0a7edb9a2c 100644
--- a/examples/step-8/CMakeLists.txt
+++ b/examples/step-8/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/examples/step-9/CMakeLists.txt b/examples/step-9/CMakeLists.txt
index 90b2f8a6f5..d1f2b6e914 100644
--- a/examples/step-9/CMakeLists.txt
+++ b/examples/step-9/CMakeLists.txt
@@ -23,7 +23,7 @@ SET(TARGET_SRC
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-FIND_PACKAGE(deal.II 9.0.0 QUIET
+FIND_PACKAGE(deal.II 9.1.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 IF(NOT ${deal.II_FOUND})
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 8b6ddc1e67..2e6c461743 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -38,7 +38,7 @@ SET_IF_EMPTY(DEAL_II_DIR $ENV{DEAL_II_DIR})
 #
 
 IF(NOT DEFINED DEAL_II_HAVE_TESTS_DIRECTORY)
-  FIND_PACKAGE(deal.II 9.0.0 REQUIRED HINTS ${DEAL_II_DIR})
+  FIND_PACKAGE(deal.II 9.1.0 REQUIRED HINTS ${DEAL_II_DIR})
   DEAL_II_INITIALIZE_CACHED_VARIABLES()
   PROJECT(TESTSUITE CXX)
   FILE(WRITE ${CMAKE_BINARY_DIR}/detailed.log
diff --git a/tests/setup_testsubproject.cmake b/tests/setup_testsubproject.cmake
index 13657ade97..6352ac8b20 100644
--- a/tests/setup_testsubproject.cmake
+++ b/tests/setup_testsubproject.cmake
@@ -1,4 +1,4 @@
-FIND_PACKAGE(deal.II 9.0.0 REQUIRED HINTS ${DEAL_II_DIR})
+FIND_PACKAGE(deal.II 9.1.0 REQUIRED HINTS ${DEAL_II_DIR})
 
 SET(CMAKE_BUILD_TYPE ${DEAL_II_BUILD_TYPE} CACHE STRING "" FORCE)
 DEAL_II_INITIALIZE_CACHED_VARIABLES()
-- 
2.39.5