diff --git a/yarn.lock b/yarn.lock
index ee945ba..c0534c2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1770,14 +1770,14 @@ mocha@~5.2.0:
     supports-color "5.4.0"
 
 moment-timezone@^0.5.x:
-  version "0.5.23"
-  resolved "https://registry.yarnpkg.com/moment-timezone/-/moment-timezone-0.5.23.tgz#7cbb00db2c14c71b19303cb47b0fb0a6d8651463"
+  version "0.5.37"
+  resolved "https://registry.yarnpkg.com/moment-timezone/-/moment-timezone-0.5.37.tgz#adf97f719c4e458fdb12e2b4e87b8bec9f4eef1e"
   dependencies:
     moment ">= 2.9.0"
 
 "moment@>= 2.9.0":
-  version "2.23.0"
-  resolved "https://registry.yarnpkg.com/moment/-/moment-2.23.0.tgz#759ea491ac97d54bac5ad776996e2a58cc1bc225"
+  version "2.29.4"
+  resolved "https://registry.yarnpkg.com/moment/-/moment-2.29.4.tgz#3dbe052889fe7c1b2ed966fcb3a77328964ef108"
 
 mqtt-packet@^5.6.0:
   version "5.6.1"