diff --git a/yarn.lock b/yarn.lock
index 2e93d001..a9207058 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4364,9 +4364,9 @@ mocha-webpack@1.0.1:
     toposort "^1.0.0"
     yargs "^4.8.0"
 
-mocha@5.0.3:
-  version "5.0.3"
-  resolved "https://registry.yarnpkg.com/mocha/-/mocha-5.0.3.tgz#0a95a6ddea9073239851a3a26ffc9c8d679c757a"
+mocha@5.0.4:
+  version "5.0.4"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-5.0.4.tgz#6b7aa328472da1088e69d47e75925fd3a3bb63c6"
   dependencies:
     browser-stdout "1.3.1"
     commander "2.11.0"