diff --git a/repmgr.h b/repmgr.h
index 876a8989..797f61a2 100644
--- a/repmgr.h
+++ b/repmgr.h
@@ -32,8 +32,8 @@
 #define STANDBY_MODE		1
 #define WITNESS_MODE		2
 
-#define MIN_SUPPORTED_VERSION		"9.1"
-#define MIN_SUPPORTED_VERSION_NUM	90100
+#define MIN_SUPPORTED_VERSION		"9.3"
+#define MIN_SUPPORTED_VERSION_NUM	90300
 
 #include "config.h"
 #define MAXFILENAME		1024