diff --git a/cleancss/cleancss.spec b/cleancss/cleancss.spec
index b47b787477..5a976f045a 100644
--- a/cleancss/cleancss.spec
+++ b/cleancss/cleancss.spec
@@ -22,8 +22,8 @@
 ##
 
 #   package version
-%define       V_cleancss      5.1.0
-%define       V_cleancss_snap 20210218
+%define       V_cleancss      5.1.1
+%define       V_cleancss_snap 20210304
 
 #   package information
 Name:         cleancss
@@ -36,7 +36,7 @@ Class:        EVAL
 Group:        Language
 License:      MIT
 Version:      %{V_cleancss}
-Release:      20210218
+Release:      20210304
 
 #   list of sources
 Source0:      http://download.openpkg.org/components/versioned/cleancss/cleancss-%{V_cleancss}-%{V_cleancss_snap}.tar.gz