diff --git a/example/demo/package-lock.json b/example/demo/package-lock.json
index e06e64c6..99a92e20 100644
--- a/example/demo/package-lock.json
+++ b/example/demo/package-lock.json
@@ -2912,10 +2912,11 @@
             }
         },
         "node_modules/postcss-selector-parser": {
-            "version": "6.0.6",
-            "resolved": "https://registry.nlark.com/postcss-selector-parser/download/postcss-selector-parser-6.0.6.tgz",
-            "integrity": "sha1-LFu6gXSsL2mBq2MaQqsO5UrzMuo=",
+            "version": "6.1.5",
+            "resolved": "https://registry.npmmirror.com/postcss-selector-parser/-/postcss-selector-parser-6.1.5.tgz",
+            "integrity": "sha512-TEHFzb5KRDKaOgJ4TYE+0jyJtFbjLvkdVOu0fZ2b6MTWzoqZd4Le+61aEppWkvTlYePgOX4ATL1wsAIPMLTw6Q==",
             "dev": true,
+            "license": "MIT",
             "dependencies": {
                 "cssesc": "^3.0.0",
                 "util-deprecate": "^1.0.2"