diff --git a/packages/taro-plugin-less/yarn.lock b/packages/taro-plugin-less/yarn.lock
index ee8276a63cd8..e01c792a10ae 100644
--- a/packages/taro-plugin-less/yarn.lock
+++ b/packages/taro-plugin-less/yarn.lock
@@ -82,8 +82,9 @@ errno@^0.1.1:
     prr "~1.0.1"
 
 extend@~3.0.1:
-  version "3.0.1"
-  resolved "https://registry.npmjs.org/extend/-/extend-3.0.1.tgz#a755ea7bc1adfcc5a31ce7e762dbaadc5e636444"
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.2.tgz#f8b1136b4071fbd8eb140aff858b1019ec2915fa"
+  integrity sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g==
 
 extsprintf@1.3.0:
   version "1.3.0"
diff --git a/packages/taro-rn/yarn.lock b/packages/taro-rn/yarn.lock
index 6710c6313f8b..b1ea2272209a 100644
--- a/packages/taro-rn/yarn.lock
+++ b/packages/taro-rn/yarn.lock
@@ -2563,8 +2563,9 @@ extend-shallow@^3.0.0, extend-shallow@^3.0.2:
     is-extendable "^1.0.1"
 
 extend@~3.0.1:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.1.tgz#a755ea7bc1adfcc5a31ce7e762dbaadc5e636444"
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.2.tgz#f8b1136b4071fbd8eb140aff858b1019ec2915fa"
+  integrity sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g==
 
 external-editor@^2.0.4:
   version "2.2.0"