ng update @angular/core

package.json

@@ -44,7 +44,7 @@
   },
   "devDependencies": {
     "@angular-devkit/build-angular": "^0.901.7",
-    "@angular/cli": "9.0.6",
+    "@angular/cli": "9.1.7",
     "@angular/compiler-cli": "9.0.6",
     "@angular/language-service": "9.0.6",
     "@types/jasmine": "3.5.9",