diff --git a/.rubocop.yml b/.rubocop.yml
index 93ef4249..7880245e 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -14,15 +14,16 @@ AllCops:
     - "examples/**/*.rb"
     - "*.rb"
   Exclude:
-    - "*.erb"
-    - "*.lua"
+    - "**/*.erb"
+    - "**/.DS_Store"
+    - "**/*.lua"
     - "assets/**/*"
     - "bin/**/*"
     - "doc/**/*"
     - "docs/**/*"
-    - "lib/tasks/**/*"
     - "lib/sidekiq_unique_jobs/lua/**/*"
     - "lib/sidekiq_unique_jobs/web/views/**/*"
+    - "lib/tasks/**/*"
     - "myapp/**/*"
     - "Sidekiq/**/*"
     - "vendor/**/*"
diff --git a/testutf8.sh b/testutf8.sh
new file mode 100644
index 00000000..bbe2796d
--- /dev/null
+++ b/testutf8.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+# Loop through all files in the repository
+find ./lib -type f | while read file; do
+  # if ! rubocop $file > /dev/null 2>&1; then
+  #   echo "Invalid UTF-8 in file: $file"
+  # fi
+
+  # Attempt to convert the file encoding from UTF-8 to UTF-8, checking for invalid sequences
+  if ! iconv -f UTF-8 -t UTF-8 "$file" > /dev/null 2>&1; then
+    # If iconv exits with a non-zero status, the file contains invalid UTF-8 sequences
+    echo "Invalid UTF-8 in file: $file"
+  fi
+done