diff --git a/package.json b/package.json
index 41a3f214..d2887aef 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
     "jsonp": "^0.2.1",
     "mobx": "^3.1.7",
     "mobx-react": "^4.1.5",
-    "moment-timezone": "^0.5.11",
+    "moment-timezone": "^0.5.35",
     "react": "^16.0.0",
     "react-dom": "^16.0.0",
     "react-github-fork-ribbon": "^0.6.0",
diff --git a/yarn.lock b/yarn.lock
index d0ce4b5a..cd3749e2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6623,9 +6623,10 @@ mobx@^3.1.7:
   version "3.6.2"
   resolved "https://registry.yarnpkg.com/mobx/-/mobx-3.6.2.tgz#fb9f5ff5090539a1ad54e75dc4c098b602693320"
 
-moment-timezone@^0.5.11:
-  version "0.5.21"
-  resolved "https://registry.yarnpkg.com/moment-timezone/-/moment-timezone-0.5.21.tgz#3cba247d84492174dbf71de2a9848fa13207b845"
+moment-timezone@^0.5.35:
+  version "0.5.35"
+  resolved "https://registry.yarnpkg.com/moment-timezone/-/moment-timezone-0.5.35.tgz#6fa2631bdbe8ff04f6b8753f7199516be6dc9839"
+  integrity sha512-cY/pBOEXepQvlgli06ttCTKcIf8cD1nmNwOKQQAdHBqYApQSpAqotBMX0RJZNgMp6i0PlZuf1mFtnlyEkwyvFw==
   dependencies:
     moment ">= 2.9.0"