diff --git a/CMakeLists.txt b/CMakeLists.txt
index eb9136d..7126cd3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -347,7 +347,7 @@ if (GIT_EXECUTABLE)
 else()
   set(GIT_SHA "GIT-hash-notfound")
 endif()
-set(APPROXMC_FULL_VERSION "2.5.0")
+set(APPROXMC_FULL_VERSION "4.0.0")
 
 string(REPLACE "." ";" APPROXMC_FULL_VERSION_LIST ${APPROXMC_FULL_VERSION})
 SetVersionNumber("PROJECT" ${APPROXMC_FULL_VERSION_LIST})