diff --git a/.fixtures.yml b/.fixtures.yml
index 96e4f4c..d78624f 100644
--- a/.fixtures.yml
+++ b/.fixtures.yml
@@ -1,9 +1,13 @@
 ---
 fixtures:
   forge_modules:
-     archive: puppet/archive
+     archive:
+       repo: puppet/archive
+       # ref: 0.4.4
      cron: puppet/cron
-     stdlib: puppetlabs/stdlib
+     stdlib:
+      repo: puppetlabs/stdlib
+      # ref: 5.0.0
      yumrepo_core: puppetlabs/yumrepo_core
   symlinks:
     zookeeper: "#{source_dir}"
diff --git a/metadata.json b/metadata.json
index a1c9bd4..96d3662 100644
--- a/metadata.json
+++ b/metadata.json
@@ -18,7 +18,7 @@
     },
     {
       "name": "puppetlabs/stdlib",
-      "version_requirement": ">= 2.3.3 < 10.0.0"
+      "version_requirement": ">= 5.0.0 < 10.0.0"
     },
     {
       "name": "puppetlabs/yumrepo_core",