diff --git a/frontend/package.json b/frontend/package.json
index 753671d..b187413 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -16,7 +16,7 @@
     "jwt-decode": "^2.2.0",
     "material-ui": "^0.20.1",
     "material-ui-persian-date-picker-utils": "^0.1.2",
-    "moment-timezone": "^0.5.23",
+    "moment-timezone": "^0.5.35",
     "perfect-scrollbar": "^1.4.0",
     "react": "^16.4.1",
     "react-country-region-selector": "^1.3.0",
diff --git a/frontend/yarn.lock b/frontend/yarn.lock
index bc99693..6299ddd 100644
--- a/frontend/yarn.lock
+++ b/frontend/yarn.lock
@@ -5326,9 +5326,9 @@ moment-jalaali@^0.7.0:
     moment "^2.22.1"
     rimraf "^2.6.2"
 
-moment-timezone@^0.5.23:
-  version "0.5.23"
-  resolved "https://registry.yarnpkg.com/moment-timezone/-/moment-timezone-0.5.23.tgz#7cbb00db2c14c71b19303cb47b0fb0a6d8651463"
+moment-timezone@^0.5.35:
+  version "0.5.35"
+  resolved "https://registry.yarnpkg.com/moment-timezone/-/moment-timezone-0.5.35.tgz#6fa2631bdbe8ff04f6b8753f7199516be6dc9839"
   dependencies:
     moment ">= 2.9.0"