diff --git a/lisp/progmodes/cc-defs.el b/lisp/progmodes/cc-defs.el
index bff1c9eb65d..973d97c2560 100644
--- a/lisp/progmodes/cc-defs.el
+++ b/lisp/progmodes/cc-defs.el
@@ -87,7 +87,7 @@
 
 ;;; Variables also used at compile time.
 
-(defconst c-version "5.33"
+(defconst c-version "5.33.1"
   "CC Mode version number.")
 
 (defconst c-version-sym (intern c-version))