diff --git a/metadata.json b/metadata.json
index 44707f5..846fe7e 100644
--- a/metadata.json
+++ b/metadata.json
@@ -14,23 +14,13 @@
     {
       "operatingsystem": "CentOS",
       "operatingsystemrelease": [
-        "6",
         "7",
         "8"
       ]
     },
-    {
-      "operatingsystem": "Debian",
-      "operatingsystemrelease": [
-        "7",
-        "8",
-        "9"
-      ]
-    },
     {
       "operatingsystem": "RedHat",
       "operatingsystemrelease": [
-        "6",
         "7",
         "8"
       ]
@@ -38,7 +28,6 @@
     {
       "operatingsystem": "OracleLinux",
       "operatingsystemrelease": [
-        "6",
         "7",
         "8"
       ]
@@ -46,8 +35,6 @@
     {
       "operatingsystem": "Ubuntu",
       "operatingsystemrelease": [
-        "14.04",
-        "16.04",
         "18.04"
       ]
     }