diff --git a/metadata.json b/metadata.json
index f51671955..0e0d042a4 100644
--- a/metadata.json
+++ b/metadata.json
@@ -25,7 +25,6 @@
     {
       "operatingsystem": "CentOS",
       "operatingsystemrelease": [
-        "6",
         "7",
         "8"
       ]