diff --git a/repmgr_version.h.in b/repmgr_version.h.in
index 4e8be80c..1ea2d210 100644
--- a/repmgr_version.h.in
+++ b/repmgr_version.h.in
@@ -1,3 +1,3 @@
 #define REPMGR_VERSION_DATE ""
-#define REPMGR_VERSION "4.0.4"
+#define REPMGR_VERSION "4.0.5dev"