diff --git a/package-lock.json b/package-lock.json
index ef2dd59c0..2c2bca3ed 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,7 +15,7 @@
         "@primer/view-components": "0.51.5",
         "@tanstack/react-query": "5.100.11",
         "axios": "1.16.1",
-        "date-fns": "^4.1.0",
+        "date-fns": "^4.2.1",
         "gray-matter": "^4.0.3",
         "next": "16.2.6",
         "react": "^19.2.6",
@@ -2999,10 +2999,9 @@
       }
     },
     "node_modules/date-fns": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/date-fns/-/date-fns-4.1.0.tgz",
-      "integrity": "sha512-Ukq0owbQXxa/U3EGtsdVBkR1w7KOQ5gIBqdH2hkvknzZPYvBxb/aa6E8L7tmjFtkwZBu3UXBbjIgPo/Ez4xaNg==",
-      "license": "MIT",
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/date-fns/-/date-fns-4.2.1.tgz",
+      "integrity": "sha512-37RhSdxaG1suen6VDCza6rNrQfooyQh57HFVPwQGEq2QWliVLzPQZ8Oa017weOu+HZCnzI7N3Pf/wyoBKfEqrA==",
       "funding": {
         "type": "github",
         "url": "https://github.com/sponsors/kossnocorp"
@@ -9436,9 +9435,9 @@
       }
     },
     "date-fns": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/date-fns/-/date-fns-4.1.0.tgz",
-      "integrity": "sha512-Ukq0owbQXxa/U3EGtsdVBkR1w7KOQ5gIBqdH2hkvknzZPYvBxb/aa6E8L7tmjFtkwZBu3UXBbjIgPo/Ez4xaNg=="
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/date-fns/-/date-fns-4.2.1.tgz",
+      "integrity": "sha512-37RhSdxaG1suen6VDCza6rNrQfooyQh57HFVPwQGEq2QWliVLzPQZ8Oa017weOu+HZCnzI7N3Pf/wyoBKfEqrA=="
     },
     "debug": {
       "version": "4.4.3",
diff --git a/package.json b/package.json
index 999d48d5f..39890e85b 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "@primer/view-components": "0.51.5",
     "@tanstack/react-query": "5.100.11",
     "axios": "1.16.1",
-    "date-fns": "^4.1.0",
+    "date-fns": "^4.2.1",
     "gray-matter": "^4.0.3",
     "next": "16.2.6",
     "react": "^19.2.6",