diff --git a/mqtt-client-React/yarn.lock b/mqtt-client-React/yarn.lock
index f83d584a..d9e87c6b 100644
--- a/mqtt-client-React/yarn.lock
+++ b/mqtt-client-React/yarn.lock
@@ -3094,12 +3094,12 @@ ci-info@^2.0.0:
   integrity sha1-Z6npZL4xpR4V5QENWObxKDQAL0Y=
 
 cipher-base@^1.0.0, cipher-base@^1.0.1, cipher-base@^1.0.3:
-  version "1.0.4"
-  resolved "https://registry.npm.taobao.org/cipher-base/download/cipher-base-1.0.4.tgz#8760e4ecc272f4c363532f926d874aae2c1397de"
-  integrity sha1-h2Dk7MJy9MNjUy+SbYdKriwTl94=
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/cipher-base/-/cipher-base-1.0.6.tgz#8fe672437d01cd6c4561af5334e0cc50ff1955f7"
+  integrity sha512-3Ek9H3X6pj5TgenXYtNWdaBon1tgYCaebd+XPg0keyjEbEfkD4KkmAxkQ/i1vYvxdcT5nscLBfq9VJRmCBcFSw==
   dependencies:
-    inherits "^2.0.1"
-    safe-buffer "^5.0.1"
+    inherits "^2.0.4"
+    safe-buffer "^5.2.1"
 
 class-utils@^0.3.5:
   version "0.3.6"
@@ -9876,7 +9876,7 @@ safe-buffer@5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   resolved "https://registry.npm.taobao.org/safe-buffer/download/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
   integrity sha1-mR7GnSluAxN0fVm9/St0XDX4go0=
 
-safe-buffer@>=5.1.0, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@^5.2.0, safe-buffer@~5.2.0:
+safe-buffer@>=5.1.0, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@^5.2.0, safe-buffer@^5.2.1, safe-buffer@~5.2.0:
   version "5.2.1"
   resolved "https://registry.npm.taobao.org/safe-buffer/download/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
   integrity sha1-Hq+fqb2x/dTsdfWPnNtOa3gn7sY=