diff --git a/package-lock.json b/package-lock.json
index 9898160..61b8489 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,6 +8,7 @@
       "name": "vscode-system-verilog",
       "version": "0.9.15",
       "dependencies": {
+        "@types/deep-diff": "^1.0.5",
         "js-yaml": "^4.1.0",
         "semver": "^7.6.0",
         "vscode-languageclient": "^9.0.1",
@@ -667,6 +668,11 @@
       "integrity": "sha512-YtxtT6vYfLK6jC55zC4Pb2YwV6Z8exn4DbDlQgoSEc6VqlFZloi6bgm0AqZns/7U4XQCAVMhv/+vnGcfyCkPfg==",
       "dev": true
     },
+    "node_modules/@types/deep-diff": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/@types/deep-diff/-/deep-diff-1.0.5.tgz",
+      "integrity": "sha512-PQyNSy1YMZU1hgZA5tTYfHPpUAo9Dorn1PZho2/budQLfqLu3JIP37JAavnwYpR1S2yFZTXa3hxaE4ifGW5jaA=="
+    },
     "node_modules/@types/eslint": {
       "version": "8.56.7",
       "resolved": "https://registry.npmjs.org/@types/eslint/-/eslint-8.56.7.tgz",
diff --git a/package.json b/package.json
index 691f2e8..f84c5fd 100644
--- a/package.json
+++ b/package.json
@@ -870,6 +870,7 @@
     "js-yaml": "^4.1.0",
     "semver": "^7.6.0",
     "vscode-languageclient": "^9.0.1",
+    "@types/deep-diff": "^1.0.5",
     "which": "^4.0.0"
   },
   "devDependencies": {