diff --git a/app/package.json b/app/package.json
index c48bff11..ff962b4d 100644
--- a/app/package.json
+++ b/app/package.json
@@ -6,7 +6,7 @@
   "author": "SHIFT calendar crew",
   "license": "MIT",
   "dependencies": {
-    "dayjs": "~1.11.13",
+    "dayjs": "~1.11.21",
     "express": "~4.22.0",
     "knex": "~2.5.1",
     "lodash": "~4.17.21",
diff --git a/cal/package.json b/cal/package.json
index 3af339a8..78fbc4af 100644
--- a/cal/package.json
+++ b/cal/package.json
@@ -13,7 +13,7 @@
     "@fortawesome/free-regular-svg-icons": "~6.7.2",
     "@fortawesome/free-solid-svg-icons": "~6.7.2",
     "@fortawesome/vue-fontawesome": "~3.1.2",
-    "dayjs": "~1.11.13",
+    "dayjs": "~1.11.21",
     "vue": "~3.5.25",
     "vue-router": "~4.6.3"
   },