diff --git a/package.json b/package.json
index 2094fcd9bb..641f0fcf92 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
     "lodash": "4.17.4",
     "mobiledoc-dom-renderer": "0.6.5",
     "moment": "2.17.1",
-    "moment-timezone": "0.5.9",
+    "moment-timezone": "0.5.12",
     "multer": "1.3.0",
     "mysql": "2.13.0",
     "nconf": "0.8.4",
diff --git a/yarn.lock b/yarn.lock
index 65f2118b2b..b4b729ac5d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3145,13 +3145,13 @@ mocha@^2.4.5:
     supports-color "1.2.0"
     to-iso-string "0.0.2"
 
-moment-timezone@0.5.9:
-  version "0.5.9"
-  resolved "https://registry.yarnpkg.com/moment-timezone/-/moment-timezone-0.5.9.tgz#e0ea82036d67d21d793544a91b5057f480eda2dd"
+moment-timezone@0.5.12:
+  version "0.5.12"
+  resolved "https://registry.yarnpkg.com/moment-timezone/-/moment-timezone-0.5.12.tgz#d8d6fa51b365050de1ac7cc5c6e3fa969444edea"
   dependencies:
-    moment ">= 2.6.0"
+    moment ">= 2.9.0"
 
-moment@2.17.1, "moment@>= 2.6.0", moment@^2.10.6, moment@^2.15.2:
+moment@2.17.1, "moment@>= 2.9.0", moment@^2.10.6, moment@^2.15.2:
   version "2.17.1"
   resolved "https://registry.yarnpkg.com/moment/-/moment-2.17.1.tgz#fed9506063f36b10f066c8b59a144d7faebe1d82"