diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3caed5b..c4e44e6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,8 +10,8 @@ include(CMakePackageConfigHelpers)
 
 # Set the version number.
 set(CPPKAFKA_VERSION_MAJOR 0)
-set(CPPKAFKA_VERSION_MINOR 3)
-set(CPPKAFKA_VERSION_REVISION 1)
+set(CPPKAFKA_VERSION_MINOR 4)
+set(CPPKAFKA_VERSION_REVISION 0)
 set(CPPKAFKA_VERSION "${CPPKAFKA_VERSION_MAJOR}.${CPPKAFKA_VERSION_MINOR}.${CPPKAFKA_VERSION_REVISION}")
 set(RDKAFKA_MIN_VERSION "0.9.4")
 set(RDKAFKA_MIN_VERSION_HEX 0x00090400)