diff --git a/package.json b/package.json
index 46751e244..bebc359dc 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "astro": "^4.16.18",
     "astro-meta-tags": "^0.3.1",
     "clsx": "^2.1.1",
-    "date-fns": "^3.6.0",
+    "date-fns": "^4.1.0",
     "date-fns-tz": "^3.2.0",
     "hastscript": "^9.0.0",
     "react": "^19.0.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 07771fce3..4c04d3acb 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -48,11 +48,11 @@ importers:
         specifier: ^2.1.1
         version: 2.1.1
       date-fns:
-        specifier: ^3.6.0
-        version: 3.6.0
+        specifier: ^4.1.0
+        version: 4.1.0
       date-fns-tz:
         specifier: ^3.2.0
-        version: 3.2.0(date-fns@3.6.0)
+        version: 3.2.0(date-fns@4.1.0)
       hastscript:
         specifier: ^9.0.0
         version: 9.0.0
@@ -1022,8 +1022,8 @@ packages:
     peerDependencies:
       date-fns: ^3.0.0 || ^4.0.0
 
-  date-fns@3.6.0:
-    resolution: {integrity: sha512-fRHTG8g/Gif+kSh50gaGEdToemgfj74aRX3swtiouboip5JDLAyDE9F11nHMIcvOaXeOC6D7SpNhi7uFyB7Uww==}
+  date-fns@4.1.0:
+    resolution: {integrity: sha512-Ukq0owbQXxa/U3EGtsdVBkR1w7KOQ5gIBqdH2hkvknzZPYvBxb/aa6E8L7tmjFtkwZBu3UXBbjIgPo/Ez4xaNg==}
 
   debug@4.4.0:
     resolution: {integrity: sha512-6WTZ/IxCY/T6BALoZHaE4ctp9xm+Z5kY/pzYaCHRFeyVhojxlrm+46y68HA6hr0TcwEssoxNiDEUJQjfPZ/RYA==}
@@ -3505,11 +3505,11 @@ snapshots:
 
   csstype@3.1.3: {}
 
-  date-fns-tz@3.2.0(date-fns@3.6.0):
+  date-fns-tz@3.2.0(date-fns@4.1.0):
     dependencies:
-      date-fns: 3.6.0
+      date-fns: 4.1.0
 
-  date-fns@3.6.0: {}
+  date-fns@4.1.0: {}
 
   debug@4.4.0:
     dependencies: