diff --git a/default.json b/default.json
index 3499137..2f87fa8 100644
--- a/default.json
+++ b/default.json
@@ -44,9 +44,9 @@
   "customManagers": [
     {
       "customType": "regex",
-      "fileMatch": ["^Dockerfile$"],
+      "fileMatch": ["^Dockerfile$", "values.yaml$"],
       "matchStrings": [
-        "datasource=(?<datasource>.*?) depName=(?<depName>.*?)( extractVersion=(?<extractVersion>.+?))?( versioning=(?<versioning>.*?))?\\n(?:ENV|ARG)?\\s.*?_(?:VERSION|VER)=(?<currentValue>[^\\s]+).*\\n"
+        "datasource=(?<datasource>.*?) depName=(?<depName>.*?)( extractVersion=(?<extractVersion>.+?))?( versioning=(?<versioning>.*?))?\\n.*?\\w+\\s*[:=]\\s*\"?(?<currentValue>[^\"\\s]+)\"?.*\\n"
       ],
       "extractVersionTemplate": "{{#if extractVersion}}{{{extractVersion}}}{{else}}^v?(?<version>.+)${{/if}}",
       "versioningTemplate": "{{#if versioning}}{{{versioning}}}{{else}}semver{{/if}}"