diff --git a/renovate.json b/renovate.json
index 719b4a1..9fabd4e 100644
--- a/renovate.json
+++ b/renovate.json
@@ -38,7 +38,7 @@
       "fileMatch": ["\\.*\\.ya?ml$"],
       "matchStrings": [
         "- (?<depName>.*):(?<currentValue>v\\d+\\.\\d+\\.\\d+)",
-        "-?\\ ?(?<depName>.*):(?<currentValue>(?<semVer>v?\\d+\\.\\d+\\.\\d+)-(?<tagSuffix>[^-]*)-?(?<subValue>v\\d+)??)"
+        "-?\\ ?(?<depName>.*):(?<currentValue>(?<semVer>v?\\d+\\.\\d+\\.\\d+)-(?<tagSuffix>[^-]*)-?(?<subValue>v\\d+)?)"
       ],
       "datasourceTemplate": "docker",
       "versioningTemplate": "semver"