diff --git a/Include/patchlevel.h b/Include/patchlevel.h
index ce4ea1b25c4..d6054c4eaef 100644
--- a/Include/patchlevel.h
+++ b/Include/patchlevel.h
@@ -1 +1 @@
-#define PATCHLEVEL "1.5"
+#define PATCHLEVEL "1.5.1"