diff --git a/examples/yarn.lock b/examples/yarn.lock
index e63c07e..fa3de77 100644
--- a/examples/yarn.lock
+++ b/examples/yarn.lock
@@ -913,11 +913,11 @@ async-limiter@~1.0.0:
   integrity sha1-ePrtjD0HSrgfIrTphdeehzj3IPg=
 
 async@^2.4.0:
-  version "2.6.2"
-  resolved "https://registry.npm.taobao.org/async/download/async-2.6.2.tgz#18330ea7e6e313887f5d2f2a904bac6fe4dd5381"
-  integrity sha1-GDMOp+bjE4h/XS8qkEusb+TdU4E=
+  version "2.6.4"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.6.4.tgz#706b7ff6084664cd7eae713f6f965433b5504221"
+  integrity sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==
   dependencies:
-    lodash "^4.17.11"
+    lodash "^4.17.14"
 
 atob@^2.1.1:
   version "2.1.2"
@@ -3423,10 +3423,10 @@ lodash.zipobject@^4.1.3:
   resolved "https://registry.npm.taobao.org/lodash.zipobject/download/lodash.zipobject-4.1.3.tgz#b399f5aba8ff62a746f6979bf20b214f964dbef8"
   integrity sha1-s5n1q6j/YqdG9peb8gshT5ZNvvg=
 
-lodash@^4.0.0, lodash@^4.16.6, lodash@^4.17.11, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0, lodash@^4.6.1:
-  version "4.17.19"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
-  integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
+lodash@^4.0.0, lodash@^4.16.6, lodash@^4.17.11, lodash@^4.17.14, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0, lodash@^4.6.1:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.3.1, loose-envify@^1.4.0:
   version "1.4.0"