diff --git a/src/upx.rc b/src/upx.rc
index 92803bc0..9607f03d 100644
--- a/src/upx.rc
+++ b/src/upx.rc
@@ -2,7 +2,7 @@
 #include "version.h"
 
 #define VERSION_MAJOR   1
-#define VERSION_MINOR   90
+#define VERSION_MINOR   91
 #define VERSION_MICRO   0
 #define VERSION_STRING  UPX_VERSION_STRING