diff --git a/package.json b/package.json
index 28ce95e..b2f504a 100644
--- a/package.json
+++ b/package.json
@@ -7,6 +7,7 @@
     "test": "mocha"
   },
   "devDependencies": {
+    "mocha": "^10.2.0",
     "solhint": "^4.0.0"
   }
 }
diff --git a/pretest.sh b/pretest.sh
index edcb7f3..8f94679 100755
--- a/pretest.sh
+++ b/pretest.sh
@@ -11,8 +11,8 @@ mkdir -p "$destination_directory"
 # Function to copy files and directories recursively
 copy_directory() {
   local src="$1"
-  local dest="$2"
-  find "$src" -mindepth 1 -maxdepth 1 -exec cp -r {} "$dest" \;
+  local dest="$2";
+  rsync -a --exclude=".git" "$src/" "$dest"
 }
 
 # Copy the files and directories from the source to the destination