diff --git a/.fixtures.yml b/.fixtures.yml
index 85b50666..b24c2b1c 100644
--- a/.fixtures.yml
+++ b/.fixtures.yml
@@ -10,5 +10,5 @@ fixtures:
     facts: 'https://github.com/puppetlabs/puppetlabs-facts.git'
     puppet_agent:
       repo: 'https://github.com/puppetlabs/puppetlabs-puppet_agent.git'
-      ref: v4.13.0
+      ref: v4.21.0
     provision: 'https://github.com/puppetlabs/provision.git'    
diff --git a/metadata.json b/metadata.json
index 706e586d..4d7fb0d4 100644
--- a/metadata.json
+++ b/metadata.json
@@ -52,7 +52,8 @@
       "operatingsystem": "Debian",
       "operatingsystemrelease": [
         "10",
-        "11"
+        "11",
+        "12"
       ]
     },
     {