diff --git a/package-lock.json b/package-lock.json
index 31862e59..f899fb44 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1080,9 +1080,9 @@
       }
     },
     "mocha": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/mocha/-/mocha-4.0.1.tgz",
-      "integrity": "sha512-evDmhkoA+cBNiQQQdSKZa2b9+W2mpLoj50367lhy+Klnx9OV8XlCIhigUnn1gaTFLQCa0kdNhEGDr0hCXOQFDw==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/mocha/-/mocha-5.0.0.tgz",
+      "integrity": "sha512-ukB2dF+u4aeJjc6IGtPNnJXfeby5d4ZqySlIBT0OEyva/DrMjVm5HkQxKnHDLKEfEQBsEnwTg9HHhtPHJdTd8w==",
       "dev": true,
       "requires": {
         "browser-stdout": "1.3.0",
diff --git a/package.json b/package.json
index 6dec40b3..8eb37d45 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,7 @@
     "eslint-plugin-mocha": "^4.11.0",
     "eslint-plugin-prefer-let": "^1.0.1",
     "git-fixtures": "^0.10.1",
-    "mocha": "^4.0.0",
+    "mocha": "^5.0.0",
     "sinon": "^4.0.0"
   }
 }