Pin dependencies (#359)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -44,19 +44,19 @@
     "form-data": "^3.0.0"
   },
   "devDependencies": {
-    "@types/express": "^4.17.8",
-    "@types/finalhandler": "^1.1.0",
-    "@types/mocha": "^8.0.3",
-    "express": "^4.17.3",
-    "finalhandler": "^1.2.0",
-    "husky": "^4.3.0",
-    "mocha": "^9.0.0",
-    "nock": "^13.2.4",
-    "nyc": "^15.1.0",
-    "prettier": "^2.6.2",
-    "ts-node": "^9.0.0",
-    "typescript": "^3.9.7",
-    "vuepress": "^1.9.7"
+    "@types/express": "4.17.13",
+    "@types/finalhandler": "1.1.1",
+    "@types/mocha": "8.2.3",
+    "express": "4.17.3",
+    "finalhandler": "1.2.0",
+    "husky": "4.3.8",
+    "mocha": "9.2.0",
+    "nock": "13.2.4",
+    "nyc": "15.1.0",
+    "prettier": "2.6.2",
+    "ts-node": "9.1.1",
+    "typescript": "3.9.10",
+    "vuepress": "1.9.7"
   },
   "husky": {
     "hooks": {