diff --git a/metadata.json b/metadata.json
index 6519345..6f891fd 100644
--- a/metadata.json
+++ b/metadata.json
@@ -19,6 +19,6 @@
     }
   ],
   "dependencies": [
-    { "name": "puppetlabs/concat", "version_requirement": ">=1.0 <2" }
+    { "name": "puppetlabs/concat", "version_requirement": ">=1.0.0 <2.0.0" }
   ]
 }