diff --git a/Installation/include/CGAL/version.h b/Installation/include/CGAL/version.h
index ccbc902614b..2909de01a4d 100644
--- a/Installation/include/CGAL/version.h
+++ b/Installation/include/CGAL/version.h
@@ -17,12 +17,12 @@
 #define CGAL_VERSION_H
 
 #ifndef SWIG
-#define CGAL_VERSION 5.3.1
+#define CGAL_VERSION 5.4-dev
 #define CGAL_GIT_HASH abcdef
 #endif
-#define CGAL_VERSION_NR 1050311000
+#define CGAL_VERSION_NR 1050400900
 #define CGAL_SVN_REVISION 99999
-#define CGAL_RELEASE_DATE 20210706
+#define CGAL_RELEASE_DATE 20211206
 
 #include <CGAL/version_macros.h>
 
diff --git a/Installation/lib/cmake/CGAL/CGALConfigVersion.cmake b/Installation/lib/cmake/CGAL/CGALConfigVersion.cmake
index 1c24063f999..7e67128ec2b 100644
--- a/Installation/lib/cmake/CGAL/CGALConfigVersion.cmake
+++ b/Installation/lib/cmake/CGAL/CGALConfigVersion.cmake
@@ -1,8 +1,8 @@
 set(CGAL_MAJOR_VERSION 5)
-set(CGAL_MINOR_VERSION 3)
-set(CGAL_BUGFIX_VERSION 1)
+set(CGAL_MINOR_VERSION 4)
+set(CGAL_BUGFIX_VERSION 0)
 include(${CMAKE_CURRENT_LIST_DIR}/CGALConfigBuildVersion.cmake)
-set(CGAL_VERSION_PUBLIC_RELEASE_VERSION "5.3.1")
+set(CGAL_VERSION_PUBLIC_RELEASE_VERSION "5.4-dev")
 set(CGAL_VERSION_PUBLIC_RELEASE_NAME "CGAL-${CGAL_VERSION_PUBLIC_RELEASE_VERSION}")
 
 if (CGAL_BUGFIX_VERSION AND CGAL_BUGFIX_VERSION GREATER 0)