diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6be510f..70c4b19 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.9)
+cmake_minimum_required(VERSION 3.11 REQUIRED)
 
 project(fast_float VERSION 0.1.0 LANGUAGES CXX)
 set(CMAKE_CXX_STANDARD 11)
@@ -31,4 +31,4 @@ endif()
 if(FASTFLOAT_TEST)
   enable_testing()
   add_subdirectory(tests)
-endif(FASTFLOAT_TEST)
\ No newline at end of file
+endif(FASTFLOAT_TEST)