diff --git a/README.md b/README.md
index d4f59dd8..f70b9276 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,9 @@ A puppet module for the Unbound caching resolver.
 * openSUSE (local repo or obs://server:dns)
 * Archlinux
 
+For an up2date list of supported operating systems and their versions, please
+check the metadata.json.
+
 ## Requirements
 
 To use this module requires at least unbound 1.6.6.  Please also consult
diff --git a/data/os/RedHat/6.yaml b/data/os/RedHat/6.yaml
deleted file mode 100644
index 17c79763..00000000
--- a/data/os/RedHat/6.yaml
+++ /dev/null
@@ -1 +0,0 @@
-unbound::restart_cmd: "/usr/bin/service %{hiera('unbound::service_name')} restart"
diff --git a/metadata.json b/metadata.json
index 18942120..485032ee 100644
--- a/metadata.json
+++ b/metadata.json
@@ -23,28 +23,24 @@
     {
       "operatingsystem": "RedHat",
       "operatingsystemrelease": [
-        "7",
         "8"
       ]
     },
     {
       "operatingsystem": "CentOS",
       "operatingsystemrelease": [
-        "7",
         "8"
       ]
     },
     {
       "operatingsystem": "OracleLinux",
       "operatingsystemrelease": [
-        "7",
         "8"
       ]
     },
     {
       "operatingsystem": "Scientific",
       "operatingsystemrelease": [
-        "7",
         "8"
       ]
     },