diff --git a/ghost/core/package.json b/ghost/core/package.json
index 5d0d10b9c5..d014987047 100644
--- a/ghost/core/package.json
+++ b/ghost/core/package.json
@@ -83,6 +83,7 @@
     "@tryghost/limit-service": "1.2.3",
     "@tryghost/logging": "2.2.4",
     "@tryghost/magic-link": "0.0.0",
+    "@tryghost/mailgun-client": "0.0.0",
     "@tryghost/member-events": "0.0.0",
     "@tryghost/members-api": "0.0.0",
     "@tryghost/members-events-service": "0.0.0",