Update TS version

src/Web/WebSPA/package.json

@@ -89,7 +89,7 @@
     "ts-node": "~7.0.1",
     "tslint": "^5.14.0",
     "typedoc": "^0.19.2",
-    "typescript": "^3.7.5",
+    "typescript": "3.6.4",
     "url-loader": "1.1.1",
     "webpack": "^4.42.1"
   }