diff --git a/renovate.json b/renovate.json
index 9eb86ec..197ae28 100644
--- a/renovate.json
+++ b/renovate.json
@@ -7,7 +7,7 @@
     {
       "customType": "regex",
       "fileMatch": ["^docker(.*).yml$"],
-      "matchStrings": ["image: (?<depName>.*?):\\${(?:.*):?-(?<currentValue>.*?)}"],
+      "matchStrings": ["image: \"(?<depName>.*?):\\${(?:.*):?-(?<currentValue>.*?)}\""],
       "datasourceTemplate": "docker"
     }
   ]