diff --git a/package.json b/package.json
index edf48a7..8c46075 100644
--- a/package.json
+++ b/package.json
@@ -87,7 +87,7 @@
     "eslint-plugin-jsx-a11y": "6.0.2",
     "eslint-plugin-react": "^7.4.0",
     "markdownlint-cli": "^0.8.1",
-    "moment-timezone": "^0.5.16",
+    "moment-timezone": "^0.5.35",
     "react-codemirror": "^1.0.0",
     "react-tag-input": "git+https://github.com/kylecombes/react-tags.git",
     "react-test-renderer": "^15.0.0",
diff --git a/yarn.lock b/yarn.lock
index e092f52..03a8a64 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6854,10 +6854,10 @@ mixin-deep@^1.2.0:
   dependencies:
     minimist "^1.2.5"
 
-moment-timezone@^0.5.14, moment-timezone@^0.5.16:
-  version "0.5.32"
-  resolved "https://registry.npmjs.org/moment-timezone/-/moment-timezone-0.5.32.tgz#db7677cc3cc680fd30303ebd90b0da1ca0dfecc2"
-  integrity sha512-Z8QNyuQHQAmWucp8Knmgei8YNo28aLjJq6Ma+jy1ZSpSk5nyfRT8xgUbSQvD2+2UajISfenndwvFuH3NGS+nvA==
+moment-timezone@^0.5.14, 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"