diff --git a/package.json b/package.json
index 880b5db..d71bbc1 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "husky": "^3.0.2",
     "livereload": "^0.8.0",
     "mathjs": "^7.0.0",
-    "moment-timezone": "^0.5.26",
+    "moment-timezone": "^0.5.35",
     "node-sass": "^4.13.1",
     "nunjucks-cli": "^1.0.0",
     "prettier": "^1.18.2",
diff --git a/yarn.lock b/yarn.lock
index 43d8280..a8d2266 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11245,19 +11245,14 @@ modern-normalize@^1.1.0:
   resolved "https://registry.yarnpkg.com/modern-normalize/-/modern-normalize-1.1.0.tgz#da8e80140d9221426bd4f725c6e11283d34f90b7"
   integrity sha512-2lMlY1Yc1+CUy0gw4H95uNN7vjbpoED7NNRSBHE25nWfLBdmMzFCsPshlzbxHz+gYMcBEUN8V4pU16prcdPSgA==
 
-moment-timezone@^0.5.26:
-  version "0.5.26"
-  resolved "https://registry.yarnpkg.com/moment-timezone/-/moment-timezone-0.5.26.tgz#c0267ca09ae84631aa3dc33f65bedbe6e8e0d772"
-  integrity sha512-sFP4cgEKTCymBBKgoxZjYzlSovC20Y6J7y3nanDc5RoBIXKlZhoYwBoZGe3flwU6A372AcRwScH8KiwV6zjy1g==
+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"
 
-"moment@>= 2.9.0":
-  version "2.24.0"
-  resolved "https://registry.yarnpkg.com/moment/-/moment-2.24.0.tgz#0d055d53f5052aa653c9f6eb68bb5d12bf5c2b5b"
-  integrity sha512-bV7f+6l2QigeBBZSM/6yTNq4P2fNpSWj/0e7jQcy87A8e7o2nAfP/34/2ky5Vw4B9S446EtIhodAzkFCcR4dQg==
-
-moment@^2.10.2, moment@^2.27.0:
+"moment@>= 2.9.0", moment@^2.10.2, moment@^2.27.0:
   version "2.29.1"
   resolved "https://registry.yarnpkg.com/moment/-/moment-2.29.1.tgz#b2be769fa31940be9eeea6469c075e35006fa3d3"
   integrity sha512-kHmoybcPV8Sqy59DwNDY3Jefr64lK/by/da0ViFcuA4DH0vQg5Q6Ze5VimxkfQNSC+Mls/Kx53s7TjP1RhFEDQ==