diff --git a/package.json b/package.json
index 74c9fc5..306134b 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "eslint-plugin-import": "^2.7.0",
     "eslint-plugin-prettier": "^2.3.1",
     "lolex": "^2.4.0",
-    "mocha": "^5.0.2",
+    "mocha": "^5.1.1",
     "prettier": "^1.7.4"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index cfe61fd..d64429d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -913,7 +913,7 @@ mimic-fn@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
 
-"minimatch@2 || 3", minimatch@^3.0.2, minimatch@^3.0.3, minimatch@^3.0.4:
+"minimatch@2 || 3", minimatch@3.0.4, minimatch@^3.0.2, minimatch@^3.0.3, minimatch@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
   dependencies:
@@ -933,9 +933,9 @@ mkdirp@0.5.1, mkdirp@^0.5.1, mkdirp@~0.5.1:
   dependencies:
     minimist "0.0.8"
 
-mocha@^5.0.2:
-  version "5.0.4"
-  resolved "https://registry.yarnpkg.com/mocha/-/mocha-5.0.4.tgz#6b7aa328472da1088e69d47e75925fd3a3bb63c6"
+mocha@^5.1.1:
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-5.1.1.tgz#b774c75609dac05eb48f4d9ba1d827b97fde8a7b"
   dependencies:
     browser-stdout "1.3.1"
     commander "2.11.0"
@@ -945,6 +945,7 @@ mocha@^5.0.2:
     glob "7.1.2"
     growl "1.10.3"
     he "1.1.1"
+    minimatch "3.0.4"
     mkdirp "0.5.1"
     supports-color "4.4.0"