diff --git a/configure.ac b/configure.ac
index f1524c24b..fb0893a66 100644
--- a/configure.ac
+++ b/configure.ac
@@ -19,7 +19,7 @@
 #  initialize & set some vars
 # ============================
 
-AC_INIT([strongSwan],[5.1.0dr3])
+AC_INIT([strongSwan],[5.1.0rc1])
 AM_INIT_AUTOMAKE(tar-ustar)
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES])
 AC_CONFIG_MACRO_DIR([m4/config])