diff --git a/countdown/package.json b/countdown/package.json
index 3fdab43..36cbcf1 100644
--- a/countdown/package.json
+++ b/countdown/package.json
@@ -7,7 +7,7 @@
   "license": "MIT",
   "dependencies": {
     "commander": "^7.1.0",
-    "luxon": "^1.26.0",
+    "luxon": "^1.28.1",
     "sprintf": "^0.1.5"
   }
 }
diff --git a/countdown/yarn.lock b/countdown/yarn.lock
index 7b2a738..a33d5da 100644
--- a/countdown/yarn.lock
+++ b/countdown/yarn.lock
@@ -7,10 +7,10 @@ commander@^7.1.0:
   resolved "https://registry.yarnpkg.com/commander/-/commander-7.1.0.tgz#f2eaecf131f10e36e07d894698226e36ae0eb5ff"
   integrity sha512-pRxBna3MJe6HKnBGsDyMv8ETbptw3axEdYHoqNh7gu5oDcew8fs0xnivZGm06Ogk8zGAJ9VX+OPEr2GXEQK4dg==
 
-luxon@^1.26.0:
-  version "1.26.0"
-  resolved "https://registry.yarnpkg.com/luxon/-/luxon-1.26.0.tgz#d3692361fda51473948252061d0f8561df02b578"
-  integrity sha512-+V5QIQ5f6CDXQpWNICELwjwuHdqeJM1UenlZWx5ujcRMc9venvluCjFb4t5NYLhb6IhkbMVOxzVuOqkgMxee2A==
+luxon@^1.28.1:
+  version "1.28.1"
+  resolved "https://registry.yarnpkg.com/luxon/-/luxon-1.28.1.tgz#528cdf3624a54506d710290a2341aa8e6e6c61b0"
+  integrity sha512-gYHAa180mKrNIUJCbwpmD0aTu9kV0dREDrwNnuyFAsO1Wt0EVYSZelPnJlbj9HplzXX/YWXHFTL45kvZ53M0pw==
 
 sprintf@^0.1.5:
   version "0.1.5"