diff --git a/default.json b/default.json
index 6d654f2..d6b9f8d 100644
--- a/default.json
+++ b/default.json
@@ -119,7 +119,7 @@
         "(^|/)Makefile$"
       ],
       "matchStrings": [
-        "# renovate: datasource=(?<datasource>[a-z-]+?) depName=(?<depName>.+?)(?: (?:packageName|lookupName)=(?<packageName>.+?))?(?: versioning=(?<versioning>[a-z-]+?))?\\s[A-Z_]+?_VERSION = (?<currentValue>.+?)\\s"
+        "# renovate: datasource=(?<datasource>[a-z-]+?) depName=(?<depName>.+?)(?: (?:packageName|lookupName)=(?<packageName>.+?))?(?: versioning=(?<versioning>[a-z-]+?))?\\s[[:word:]]+?_VERSION = (?<currentValue>.+?)\\s"
       ]
     },
     {
@@ -138,8 +138,8 @@
         "^\\.github/workflows/[^/]+\\.ya?ml$"
       ],
       "matchStrings": [
-        "\\s+(?:[a-z]-)?version: (?<currentValue>.+?) # renovate: datasource=(?<datasource>.+?) depName=(?<depName>.+?)(?: (?:packageName|lookupName)=(?<packageName>.+?))?(?: versioning=(?<versioning>.+?))?\\s",
-        "\\s*[A-Z_]+?_VERSION=(?<currentValue>.+?) # renovate: datasource=(?<datasource>.+?) depName=(?<depName>.+?)(?: (?:packageName|lookupName)=(?<packageName>.+?))?(?: versioning=(?<versioning>.+?))?\\s"
+        "\\s+(?:[[:word:]]-)?version: (?<currentValue>.+?) # renovate: datasource=(?<datasource>.+?) depName=(?<depName>.+?)(?: (?:packageName|lookupName)=(?<packageName>.+?))?(?: versioning=(?<versioning>.+?))?\\s",
+        "\\s*[[:word:]]+?_VERSION=(?<currentValue>.+?) # renovate: datasource=(?<datasource>.+?) depName=(?<depName>.+?)(?: (?:packageName|lookupName)=(?<packageName>.+?))?(?: versioning=(?<versioning>.+?))?\\s"
       ]
     },
     {