fix rxjs

package.json

@@ -27,13 +27,13 @@
     "layui-laydate": "^5.0.9",
     "ng-zorro-antd": "^1.8.0",
     "ngx-color-picker": "^7.0.1",
-    "rxjs": "^6.0.0",
+    "rxjs": "6.0.0",
     "zone.js": "^0.8.26",
     "ztree": "^3.5.24"
   },
   "devDependencies": {
     "@angular-devkit/build-angular": "~0.6.1",
-    "@angular/cli": "~6.0.1",
+    "@angular/cli": "^6.0.8",
     "@angular/compiler-cli": "^6.0.0",
     "@angular/language-service": "^6.0.0",
     "@types/jasmine": "~2.8.6",