diff --git a/CMakeLists.txt b/CMakeLists.txt
index d68ce125..34a2e319 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,7 @@ cmake_policy(SET CMP0048 NEW) # enable project VERSION
 cmake_policy(SET CMP0056 NEW) # honor link flags in try_compile()
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 
-project(immer VERSION 0.4.0)
+project(immer VERSION 0.5.0)
 
 if (NOT MSVC)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic -Wno-unused-parameter -Wno-extended-offsetof")