diff --git a/Installation/include/CGAL/version.h b/Installation/include/CGAL/version.h
index fa9576b1852..5283590d252 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 5.4-beta2
+#define CGAL_VERSION 5.5-dev
 #define CGAL_GIT_HASH abcdef
 #endif
-#define CGAL_VERSION_NR 1050400920
+#define CGAL_VERSION_NR 1050500900
 #define CGAL_SVN_REVISION 99999
-#define CGAL_RELEASE_DATE 20211215
+#define CGAL_RELEASE_DATE 20220531
 
 #include <CGAL/version_macros.h>
 
diff --git a/Installation/lib/cmake/CGAL/CGALConfigVersion.cmake b/Installation/lib/cmake/CGAL/CGALConfigVersion.cmake
index c9c4c5f3c11..315ff61ca1a 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 4)
+set(CGAL_MINOR_VERSION 5)
 set(CGAL_BUGFIX_VERSION 0)
 include(${CMAKE_CURRENT_LIST_DIR}/CGALConfigBuildVersion.cmake)
-set(CGAL_VERSION_PUBLIC_RELEASE_VERSION "5.4-beta2")
+set(CGAL_VERSION_PUBLIC_RELEASE_VERSION "5.5-dev")
 set(CGAL_VERSION_PUBLIC_RELEASE_NAME "CGAL-${CGAL_VERSION_PUBLIC_RELEASE_VERSION}")
 
 if (CGAL_BUGFIX_VERSION AND CGAL_BUGFIX_VERSION GREATER 0)