diff --git a/mono-core.spec b/mono-core.spec
index d5ce70f05f..7a6b6859c9 100644
--- a/mono-core.spec
+++ b/mono-core.spec
@@ -32,7 +32,7 @@ Name:           mono-core
 %define __majorver 5.15.0
 %define __minorver 583
 Version:	%{__majorver}.%{__minorver}
-Release:	0.nightly.3
+Release:	0.nightly.4
 Summary:        Cross-platform, Open Source, .NET development framework
 License:        LGPL-2.1 and MIT and MS-PL
 Group:          Development/Languages/Mono