diff --git a/renovate.json5 b/renovate.json5
index dea3c849..4064b52d 100644
--- a/renovate.json5
+++ b/renovate.json5
@@ -8,7 +8,7 @@
       "customType": "regex",
       "managerFilePatterns": ["/^Dockerfile$/"],
       "matchStrings": [
-        "# renovate: datasource=(?<datasource>[a-z-]+?)(?: packageName=(?<packageName>.+?))? (?: versioning=(?<versioning>[a-z-]+?))?\\s(?:ENV|ARG) .+?_VERSION=(?<currentValue>.+?)\\s"
+        "# renovate: datasource=(?<datasource>[a-z-]+?)(?: packageName=(?<packageName>.+?))?(?: versioning=(?<versioning>[a-z-]+))?\\s(?:ENV|ARG) .+?_VERSION=(?<currentValue>.+?)\\s"
       ]
     }
   ]