chore: limit ts

Author: aaron-steinfeld

package-lock.json

@@ -109,7 +109,7 @@
     "ts-node": "~9.1.1",
     "tslint": "~6.1.3",
     "tslint-config-prettier": "^1.18.0",
-    "typescript": "^4.1.5",
+    "typescript": "~4.1.5",
     "typescript-tslint-plugin": "^1.0.1"
   },
   "config": {