diff --git a/functions/package.json b/functions/package.json
index 3bf228367..3eb349164 100644
--- a/functions/package.json
+++ b/functions/package.json
@@ -8,7 +8,7 @@
   "dependencies": {
     "@auth/core": "0.18.0",
     "cookie": "0.6.0",
-    "date-fns": "3.6.0",
+    "date-fns": "4.1.0",
     "fast-xml-parser": "4.4.0",
     "http-status-codes": "2.3.0",
     "query-string": "8.2.0",
diff --git a/pages/package.json b/pages/package.json
index b4b550b7a..eec70a99f 100644
--- a/pages/package.json
+++ b/pages/package.json
@@ -19,7 +19,7 @@
     "@sentry/react": "7.99.0",
     "@tabler/icons-react": "2.47.0",
     "chroma-js": "2.4.2",
-    "date-fns": "3.6.0",
+    "date-fns": "4.1.0",
     "idb": "8.0.0",
     "immer": "10.1.1",
     "jotai": "2.8.3",
diff --git a/yarn.lock b/yarn.lock
index c83f2540b..3d81dd04a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5087,10 +5087,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"date-fns@npm:3.6.0, date-fns@npm:^3.6.0":
-  version: 3.6.0
-  resolution: "date-fns@npm:3.6.0"
-  checksum: cac35c58926a3b5d577082ff2b253612ec1c79eb6754fddef46b6a8e826501ea2cb346ecbd211205f1ba382ddd1f9d8c3f00bf433ad63cc3063454d294e3a6b8
+"date-fns@npm:4.1.0":
+  version: 4.1.0
+  resolution: "date-fns@npm:4.1.0"
+  checksum: d5f6e9de5bbc52310f786099e18609289ed5e30af60a71e0646784c8185ddd1d0eebcf7c96b7faaaefc4a8366f3a3a4244d099b6d0866ee2bec80d1361e64342
   languageName: node
   linkType: hard
 
@@ -5103,6 +5103,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"date-fns@npm:^3.6.0":
+  version: 3.6.0
+  resolution: "date-fns@npm:3.6.0"
+  checksum: cac35c58926a3b5d577082ff2b253612ec1c79eb6754fddef46b6a8e826501ea2cb346ecbd211205f1ba382ddd1f9d8c3f00bf433ad63cc3063454d294e3a6b8
+  languageName: node
+  linkType: hard
+
 "debug@npm:4, debug@npm:^4.1.0, debug@npm:^4.1.1, debug@npm:^4.3.1, debug@npm:^4.3.2, debug@npm:^4.3.4":
   version: 4.3.4
   resolution: "debug@npm:4.3.4"
@@ -6698,7 +6705,7 @@ __metadata:
     "@types/cookie": "npm:0.6.0"
     "@types/query-string": "npm:6.3.0"
     cookie: "npm:0.6.0"
-    date-fns: "npm:3.6.0"
+    date-fns: "npm:4.1.0"
     fast-xml-parser: "npm:4.4.0"
     http-status-codes: "npm:2.3.0"
     query-string: "npm:8.2.0"
@@ -8594,7 +8601,7 @@ __metadata:
     babel-plugin-relay: "npm:17.0.0"
     chroma-js: "npm:2.4.2"
     concurrently: "npm:8.2.2"
-    date-fns: "npm:3.6.0"
+    date-fns: "npm:4.1.0"
     idb: "npm:8.0.0"
     immer: "npm:10.1.1"
     jotai: "npm:2.8.3"