diff --git a/Libraries/zlib/files/variants.rhel6 b/Libraries/zlib/files/variants.rhel6
index 508ca7e..2dbe9de 100644
--- a/Libraries/zlib/files/variants.rhel6
+++ b/Libraries/zlib/files/variants.rhel6
@@ -1,2 +1,2 @@
 zlib/1.2.11	stable
-zlib/1.2.13	unstable
+zlib/1.2.13	stable