diff --git a/awesome/grpc_demo/package-lock.json b/awesome/grpc_demo/package-lock.json
index 85da0f8..775af53 100644
--- a/awesome/grpc_demo/package-lock.json
+++ b/awesome/grpc_demo/package-lock.json
@@ -108,9 +108,12 @@
       }
     },
     "async": {
-      "version": "1.5.2",
-      "resolved": "https://registry.npm.taobao.org/async/download/async-1.5.2.tgz",
-      "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo="
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
+      "requires": {
+        "lodash": "^4.17.14"
+      }
     },
     "bytebuffer": {
       "version": "5.0.1",
diff --git a/awesome/grpc_demo/package.json b/awesome/grpc_demo/package.json
index 3af6a11..34cefed 100644
--- a/awesome/grpc_demo/package.json
+++ b/awesome/grpc_demo/package.json
@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "dependencies": {
     "@grpc/proto-loader": "^0.1.0",
-    "async": "^1.5.2",
+    "async": "^2.6.4",
     "google-protobuf": "^3.0.0",
     "grpc": "^1.11.0",
     "lodash": "^4.6.1",
diff --git a/awesome/grpc_demo/yarn.lock b/awesome/grpc_demo/yarn.lock
index d014b11..97c5670 100644
--- a/awesome/grpc_demo/yarn.lock
+++ b/awesome/grpc_demo/yarn.lock
@@ -129,10 +129,12 @@ ascli@~1:
     colour "~0.7.1"
     optjs "~3.2.2"
 
-async@^1.5.2:
-  version "1.5.2"
-  resolved "https://registry.npm.taobao.org/async/download/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
-  integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
+async@^2.6.4:
+  version "2.6.4"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.6.4.tgz#706b7ff6084664cd7eae713f6f965433b5504221"
+  integrity sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==
+  dependencies:
+    lodash "^4.17.14"
 
 balanced-match@^1.0.0:
   version "1.0.0"
@@ -356,10 +358,10 @@ lodash.clone@^4.5.0:
   resolved "https://registry.npm.taobao.org/lodash.clone/download/lodash.clone-4.5.0.tgz#195870450f5a13192478df4bc3d23d2dea1907b6"
   integrity sha1-GVhwRQ9aExkkeN9Lw9I9LeoZB7Y=
 
-lodash@^4.17.5, lodash@^4.6.1:
-  version "4.17.15"
-  resolved "https://registry.npm.taobao.org/lodash/download/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
-  integrity sha1-tEf2ZwoEVbv+7dETku/zMOoJdUg=
+lodash@^4.17.14, lodash@^4.17.5, lodash@^4.6.1:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 long@^4.0.0:
   version "4.0.0"