diff --git a/package.json b/package.json
index c711812b0..5fdfa069a 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "chartkick": "^5.0.1",
     "datatables.net": "^2",
     "datatables.net-bs5": "^2",
-    "dayjs": "^1.11.20",
+    "dayjs": "^1.11.21",
     "google-palette": "^1.1.1",
     "highlight.js": "^11.11.1",
     "postcss": "^8.5.15",
diff --git a/yarn.lock b/yarn.lock
index cd8eba13e..6a55aff69 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -532,10 +532,10 @@ date-fns@>=2:
   resolved "https://registry.npmjs.org/date-fns/-/date-fns-4.1.0.tgz"
   integrity sha512-Ukq0owbQXxa/U3EGtsdVBkR1w7KOQ5gIBqdH2hkvknzZPYvBxb/aa6E8L7tmjFtkwZBu3UXBbjIgPo/Ez4xaNg==
 
-dayjs@^1.11.20:
-  version "1.11.20"
-  resolved "https://registry.yarnpkg.com/dayjs/-/dayjs-1.11.20.tgz#88d919fd639dc991415da5f4cb6f1b6650811938"
-  integrity sha512-YbwwqR/uYpeoP4pu043q+LTDLFBLApUP6VxRihdfNTqu4ubqMlGDLd6ErXhEgsyvY0K6nCs7nggYumAN+9uEuQ==
+dayjs@^1.11.21:
+  version "1.11.21"
+  resolved "https://registry.yarnpkg.com/dayjs/-/dayjs-1.11.21.tgz#57f87562e62de76f3c704bd2b8d522fc33068eb2"
+  integrity sha512-98IT+HOahAisibz/yjKbzuOBwYcjJ7BCLPzARyHiyEBmRz4fatF+KPJszEHXsGYjUG234aH/cOjW1wwTbKUZlA==
 
 dependency-graph@^1.0.0:
   version "1.0.0"