diff --git a/package.json b/package.json
index c46a4caaa..86164f2d4 100644
--- a/package.json
+++ b/package.json
@@ -205,6 +205,7 @@
     "eslint": "^4.5.0",
     "eslint-plugin-mocha": "^4.11.0",
     "identity-obj-proxy": "^3.0.0",
+    "ip": "^1.1.5",
     "jest": "^21.2.1",
     "mocha": "^3.1.2",
     "mocha-junit-reporter": "^1.12.1",
diff --git a/yarn.lock b/yarn.lock
index c380bcd3a..b9ef3f31e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4186,7 +4186,7 @@ ip@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/ip/-/ip-1.0.1.tgz#c7e356cdea225ae71b36d70f2e71a92ba4e42590"
 
-ip@^1.1.2, ip@^1.1.4:
+ip@^1.1.2, ip@^1.1.4, ip@^1.1.5:
   version "1.1.5"
   resolved "https://registry.yarnpkg.com/ip/-/ip-1.1.5.tgz#bdded70114290828c0a039e72ef25f5aaec4354a"