diff --git a/README.md b/README.md
index 7508eb2..30ecfea 100644
--- a/README.md
+++ b/README.md
@@ -89,13 +89,13 @@ modification_rules:
         insert_text: "new content"
       - before_text: "target"  # Insert before this exact (plain) text
         insert_text: "new content"
-      - before_text: 're:<link href="main\\.jellyfin\\.[^"]+\\.css[^"]*" rel="stylesheet">'  # Regex variant
+      - before_text: 're:<link href="main\.jellyfin\.[0-9a-z]+\.css?[0-9a-z]+" rel="stylesheet">'  # Regex variant
         insert_text: "<script>// injected</script>"
     replace_rules:
       - old_text: "original"  # Plain substring replacement
         new_text: "replacement"
-      - old_text: 're:<link href="main\\.jellyfin\\.[^"]+\\.css[^"]*" rel="stylesheet">'
-        new_text: 're:<link href="newMain\\.newJellyfin\\.[^"]+\\.css[^"]*" rel="stylesheet">'
+      - old_text: 're:<link href="main\.jellyfin\.[0-9a-z]+\.css?[0-9a-z]+" rel="stylesheet">' # regex variant
+        new_text: 'somthing new (without regex!!!)'
 ```
 
 ### Running the Script