diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index da05b8e55..8667819a2 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -166,8 +166,8 @@ set(CMAKE_SKIP_RULE_DEPENDENCY TRUE)
 SET(MusE_VERSION_MAJOR 4)
 SET(MusE_VERSION_MINOR 0)
 SET(MusE_VERSION_PATCH 0)
-SET(MusE_VERSION       "4.2.0")
-SET(MusE_VERSION_FULL  "4.2.0")
+SET(MusE_VERSION       "4.2.1")
+SET(MusE_VERSION_FULL  "4.2.1")
 SET(MusE_INSTALL_NAME  "muse-4.2")
 SET(MusE_EXEC_NAME     "muse4")
 
diff --git a/src/ChangeLog b/src/ChangeLog
index 3f6fae1e1..a2c0dff8f 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,5 @@
+24.09.2023
+    *** MusE 4.2.1 ***
 23.09.2023
     - Fix issue 1247: compilation only succeeds with MODULES_BUILD_STATIC=1 (Tim)
       Five undefined symbols. Remove 'inline' from five functions in mididev.cpp