diff --git a/.fixtures.yml b/.fixtures.yml
index 04afa39c..a2e2eb2f 100644
--- a/.fixtures.yml
+++ b/.fixtures.yml
@@ -4,6 +4,6 @@ fixtures:
     provision: "https://github.com/puppetlabs/provision.git"
     puppet_agent: 
       repo: 'https://github.com/puppetlabs/puppetlabs-puppet_agent.git'
-      ref: v4.13.0
+      ref: v4.21.0
     stdlib: "https://github.com/puppetlabs/puppetlabs-stdlib.git"
     mount_core: "https://github.com/puppetlabs/puppetlabs-mount_core.git"
diff --git a/metadata.json b/metadata.json
index b500faaa..7a7b0965 100644
--- a/metadata.json
+++ b/metadata.json
@@ -32,7 +32,8 @@
       "operatingsystem": "Debian",
       "operatingsystemrelease": [
         "10",
-        "11"
+        "11",
+        "12"
       ]
     },
     {