diff --git a/README.md b/README.md
index 6d2225c..deea944 100644
--- a/README.md
+++ b/README.md
@@ -123,6 +123,7 @@ class { 'chrony':
 ```
 
 ### Enable chrony-wait.service
+
 RedHat and Suse provide a default disabled `chrony-wait.service` to block the `time-sync.target`
 until node is synchronised.
 
@@ -149,7 +150,7 @@ The module has been tested on:
 
 - Arch Linux
 - Red Hat
-- Debian 9, 10
+- Debian 10, 11
 - Ubuntu 18.04, 20.04
 - Suse 12.3
 - Gentoo 2.7
diff --git a/metadata.json b/metadata.json
index b36f2f2..b19a091 100644
--- a/metadata.json
+++ b/metadata.json
@@ -30,8 +30,8 @@
     {
       "operatingsystem": "Debian",
       "operatingsystemrelease": [
-        "9",
-        "10"
+        "10",
+        "11"
       ]
     },
     {