diff --git a/metadata.json b/metadata.json
index cc1adc5a..6b73eef6 100644
--- a/metadata.json
+++ b/metadata.json
@@ -62,7 +62,7 @@
     },
     {
       "name": "puppetlabs-concat",
-      "version_requirement": ">= 4.1.0 < 9.0.0"
+      "version_requirement": ">= 4.1.0 < 10.0.0"
     },
     {
       "name": "puppetlabs-stdlib",