diff --git a/cmake/CXX1x.cmake b/cmake/CXX1x.cmake
index 8977565e8..36252f2ba 100644
--- a/cmake/CXX1x.cmake
+++ b/cmake/CXX1x.cmake
@@ -23,8 +23,8 @@ macro(check_for_cxx11_compiler _VAR)
     message(STATUS "Checking for C++11 compiler")
     set(${_VAR})
     if((MSVC AND (MSVC10 OR MSVC11 OR MSVC12 OR MSVC14)) OR
-    (CMAKE_COMPILER_IS_GNUCXX AND NOT ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 4.6) OR
-    (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND NOT ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 3.1) OR
+    (CMAKE_COMPILER_IS_GNUCXX AND NOT ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 4.8.1) OR
+    (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND NOT ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 3.3) OR
     (CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang"))
         set(${_VAR} 1)
         message(STATUS "Checking for C++11 compiler - available")
@@ -44,7 +44,7 @@ macro(check_for_cxx14_compiler _VAR)
     message(STATUS "Checking for C++14 compiler")
     set(${_VAR})
     if((MSVC AND (MSVC14)) OR
-    (CMAKE_COMPILER_IS_GNUCXX AND NOT ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 4.7) OR
+    (CMAKE_COMPILER_IS_GNUCXX AND NOT ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 4.9.2) OR
     (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND NOT ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 3.4) OR
     (CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang"))
         set(${_VAR} 1)