diff --git a/package.json b/package.json
index f7c8a00..34d5426 100644
--- a/package.json
+++ b/package.json
@@ -68,7 +68,7 @@
     "is-appveyor": "1.0.0",
     "istanbul": "0.4.5",
     "jshint": "2.9.5",
-    "mocha": "4.0.1",
+    "mocha": "5.0.0",
     "mocha-lcov-reporter": "1.3.0",
     "mockery": "2.1.0",
     "nixt": "0.5.0",
diff --git a/yarn.lock b/yarn.lock
index 9f0c52c..58042e6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2293,9 +2293,9 @@ mocha-lcov-reporter@1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/mocha-lcov-reporter/-/mocha-lcov-reporter-1.3.0.tgz#469bdef4f8afc9a116056f079df6182d0afb0384"
 
-mocha@4.0.1:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/mocha/-/mocha-4.0.1.tgz#0aee5a95cf69a4618820f5e51fa31717117daf1b"
+mocha@5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-5.0.0.tgz#cccac988b0bc5477119cba0e43de7af6d6ad8f4e"
   dependencies:
     browser-stdout "1.3.0"
     commander "2.11.0"