diff --git a/CMakeLists.txt b/CMakeLists.txt
index c1446545c..a5c5d113c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -70,21 +70,13 @@ mark_as_advanced(HIGHFIVE_SANITIZER)
 # -----------------------------------
 
 if(NOT DEFINED CMAKE_CXX_STANDARD)
-    if(HIGHFIVE_TEST_XTENSOR)
-        set(CMAKE_CXX_STANDARD 14)
-    else()
-        set(CMAKE_CXX_STANDARD 11)
-    endif()
+    set(CMAKE_CXX_STANDARD 14)
     set(CMAKE_CXX_STANDARD_REQUIRED ON)
     set(CMAKE_CXX_EXTENSIONS OFF)
 endif()
 
-if(CMAKE_CXX_STANDARD EQUAL 98)
-    message(FATAL_ERROR "HighFive needs to be compiled with at least C++11")
-endif()
-
-if(HIGHFIVE_TEST_XTENSOR AND CMAKE_CXX_STANDARD LESS 14)
-  message(FATAL_ERROR "XTensor requires C++14 or newer.")
+if(CMAKE_CXX_STANDARD EQUAL 98 OR CMAKE_CXX_STANDARD LESS 14)
+    message(FATAL_ERROR "HighFive needs to be compiled with at least C++14")
 endif()
 
 add_compile_definitions(HIGHFIVE_CXX_STD=${CMAKE_CXX_STANDARD})
diff --git a/README.md b/README.md
index 0eae323e4..49beff63c 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ Documentation: https://bluebrain.github.io/HighFive/
 
 ## Brief
 
-HighFive is a modern header-only C++11 friendly interface for libhdf5.
+HighFive is a modern header-only C++14 friendly interface for libhdf5.
 
 HighFive supports STL vector/string, Boost::UBLAS, Boost::Multi-array and Xtensor. It handles C++ from/to HDF5 with automatic type mapping.
 HighFive does not require additional libraries (see dependencies).
@@ -24,7 +24,7 @@ It integrates nicely with other CMake projects by defining (and exporting) a Hig
 - Simple C++-ish minimalist interface
 - No other dependency than libhdf5
 - Zero overhead
-- Support C++11
+- Support C++14
 
 ### Feature support
 - create/read/write files, datasets, attributes, groups, dataspaces.
diff --git a/tests/cmake_integration/application/CMakeLists.txt b/tests/cmake_integration/application/CMakeLists.txt
index 469344e9b..8f2a71423 100644
--- a/tests/cmake_integration/application/CMakeLists.txt
+++ b/tests/cmake_integration/application/CMakeLists.txt
@@ -6,7 +6,7 @@ cmake_minimum_required(VERSION 3.14)
 project(Hi5Application VERSION 0.1)
 
 if(NOT DEFINED CMAKE_CXX_STANDARD)
-  set(CMAKE_CXX_STANDARD 11)
+  set(CMAKE_CXX_STANDARD 14)
   set(CMAKE_CXX_STANDARD_REQUIRED ON)
   set(CMAKE_CXX_EXTENSIONS OFF)
 endif()
diff --git a/tests/cmake_integration/dependent_library/CMakeLists.txt b/tests/cmake_integration/dependent_library/CMakeLists.txt
index 1cdbaf35a..ad76d99b2 100644
--- a/tests/cmake_integration/dependent_library/CMakeLists.txt
+++ b/tests/cmake_integration/dependent_library/CMakeLists.txt
@@ -15,7 +15,7 @@ cmake_minimum_required(VERSION 3.14)
 project(Hi5Dependent VERSION 0.1)
 
 if(NOT DEFINED CMAKE_CXX_STANDARD)
-  set(CMAKE_CXX_STANDARD 11)
+  set(CMAKE_CXX_STANDARD 14)
   set(CMAKE_CXX_STANDARD_REQUIRED ON)
   set(CMAKE_CXX_EXTENSIONS OFF)
 endif()
diff --git a/tests/cmake_integration/test_dependent_library/CMakeList.txt b/tests/cmake_integration/test_dependent_library/CMakeList.txt
index b8b7cb021..08bc4a4ad 100644
--- a/tests/cmake_integration/test_dependent_library/CMakeList.txt
+++ b/tests/cmake_integration/test_dependent_library/CMakeList.txt
@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.14)
 project(TestHi5Dependent VERSION 0.1)
 
 if(NOT DEFINED CMAKE_CXX_STANDARD)
-  set(CMAKE_CXX_STANDARD 11)
+  set(CMAKE_CXX_STANDARD 14)
   set(CMAKE_CXX_STANDARD_REQUIRED ON)
   set(CMAKE_CXX_EXTENSIONS OFF)
 endif()
diff --git a/tests/cmake_integration/test_dependent_library/CMakeLists.txt b/tests/cmake_integration/test_dependent_library/CMakeLists.txt
index b6c7f3375..c9023f98a 100644
--- a/tests/cmake_integration/test_dependent_library/CMakeLists.txt
+++ b/tests/cmake_integration/test_dependent_library/CMakeLists.txt
@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.14)
 project(TestHi5Dependent VERSION 0.1)
 
 if(NOT DEFINED CMAKE_CXX_STANDARD)
-  set(CMAKE_CXX_STANDARD 11)
+  set(CMAKE_CXX_STANDARD 14)
   set(CMAKE_CXX_STANDARD_REQUIRED ON)
   set(CMAKE_CXX_EXTENSIONS OFF)
 endif()