diff --git a/package.json b/package.json
index e2befc1..46cf8a5 100644
--- a/package.json
+++ b/package.json
@@ -28,12 +28,12 @@
     "eslint": "^6.8.0",
     "fs-extra": "^8.1.0",
     "globals": "^12.4.0",
-    "mocha": "^6.2.3",
+    "mocha": "^9.2.2",
     "npm-run-all": "^4.1.5",
-    "nyc": "^14.1.1",
+    "nyc": "^15.1.0",
     "opener": "^1.5.2",
     "rimraf": "^3.0.2",
-    "typescript": "^3.9.10"
+    "typescript": "^4.8.4"
   },
   "scripts": {
     "clean": "rimraf .nyc_output coverage",