diff --git a/examples/design-system/package.json b/examples/design-system/package.json
index d3d255eca..c3ba854e6 100644
--- a/examples/design-system/package.json
+++ b/examples/design-system/package.json
@@ -27,10 +27,9 @@
   },
   "dependencies": {
     "@heroicons/react": "2.1.5",
-    "@jeromefitz/date-fns-tz": "3.0.0-canary.8",
     "@jeromefitz/design-system": "workspace:*",
     "cmdk": "1.0.0",
-    "date-fns": "3.6.0",
+    "date-fns": "4.1.0",
     "framer-motion": "11.5.6",
     "next": "14.2.13",
     "next-themes": "0.3.0",
diff --git a/packages/notion/package.json b/packages/notion/package.json
index 8c2e24bbb..941e6119c 100644
--- a/packages/notion/package.json
+++ b/packages/notion/package.json
@@ -41,9 +41,8 @@
     "lodash": "^4.17.21"
   },
   "dependencies": {
-    "@jeromefitz/date-fns-tz": "3.0.0-canary.8",
     "@notionhq/client": "2.2.15",
-    "date-fns": "3.6.0",
+    "date-fns": "4.1.0",
     "github-slugger": "2.0.0"
   },
   "devDependencies": {
diff --git a/packages/release-notes-generator/package.json b/packages/release-notes-generator/package.json
index 9c9075a74..5d86b7b26 100644
--- a/packages/release-notes-generator/package.json
+++ b/packages/release-notes-generator/package.json
@@ -38,7 +38,7 @@
     "@octokit/rest": "21.0.2",
     "conventional-commits-filter": "5.0.0",
     "conventional-commits-parser": "6.0.0",
-    "date-fns": "3.6.0",
+    "date-fns": "4.1.0",
     "import-from-esm": "1.3.4",
     "read-package-up": "11.0.0",
     "semver": "7.6.3"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 79153b8d2..36938f877 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -242,15 +242,12 @@ importers:
 
   packages/notion:
     dependencies:
-      '@jeromefitz/date-fns-tz':
-        specifier: 3.0.0-canary.8
-        version: 3.0.0-canary.8(date-fns@3.6.0)
       '@notionhq/client':
         specifier: 2.2.15
         version: 2.2.15
       date-fns:
-        specifier: 3.6.0
-        version: 3.6.0
+        specifier: 4.1.0
+        version: 4.1.0
       github-slugger:
         specifier: 2.0.0
         version: 2.0.0
@@ -277,8 +274,8 @@ importers:
         specifier: 6.0.0
         version: 6.0.0
       date-fns:
-        specifier: 3.6.0
-        version: 3.6.0
+        specifier: 4.1.0
+        version: 4.1.0
       import-from-esm:
         specifier: 1.3.4
         version: 1.3.4
@@ -683,11 +680,6 @@ packages:
     resolution: {integrity: sha512-O8jcjabXaleOG9DQ0+ARXWZBTfnP4WNAqzuiJK7ll44AmxGKv/J2M4TPjxjY3znBCfvBXFzucm1twdyFybFqEA==}
     engines: {node: '>=12'}
 
-  '@jeromefitz/date-fns-tz@3.0.0-canary.8':
-    resolution: {integrity: sha512-tU4JAYkqsKqwdwa+4X2Un0fFT/OaeQw3NV6AGLeyNd/TfNEJZlV6lHOemG6NAigZlGkGEIK279SIjEJPZsMkUg==}
-    peerDependencies:
-      date-fns: ^3.0.0
-
   '@jridgewell/gen-mapping@0.3.5':
     resolution: {integrity: sha512-IzL8ZoEDIBRWEzlCcRhOaCupYyN5gdIK+Q6fbFdPDg6HqX6jpkItn7DFIpW9LQzXG6Df9sA7+OKnq0qlz/GaQg==}
     engines: {node: '>=6.0.0'}
@@ -1542,8 +1534,8 @@ packages:
     resolution: {integrity: sha512-t/Ygsytq+R995EJ5PZlD4Cu56sWa8InXySaViRzw9apusqsOO2bQP+SbYzAhR0pFKoB+43lYy8rWban9JSuXnA==}
     engines: {node: '>= 0.4'}
 
-  date-fns@3.6.0:
-    resolution: {integrity: sha512-fRHTG8g/Gif+kSh50gaGEdToemgfj74aRX3swtiouboip5JDLAyDE9F11nHMIcvOaXeOC6D7SpNhi7uFyB7Uww==}
+  date-fns@4.1.0:
+    resolution: {integrity: sha512-Ukq0owbQXxa/U3EGtsdVBkR1w7KOQ5gIBqdH2hkvknzZPYvBxb/aa6E8L7tmjFtkwZBu3UXBbjIgPo/Ez4xaNg==}
 
   debug@3.2.7:
     resolution: {integrity: sha512-CFjzYYAi4ThfiQvizrFQevTTXHtnCqWfe7x1AhgEscTz6ZbLbfoLRLPugTQyBth6f8ZERVUSyWHFD/7Wu4t1XQ==}
@@ -2672,9 +2664,6 @@ packages:
   lodash.capitalize@4.2.1:
     resolution: {integrity: sha512-kZzYOKspf8XVX5AvmQF94gQW0lejFVgb80G85bU4ZWzoJ6C03PQg3coYAUpSTpQWelrZELd3XWgHzw4Ck5kaIw==}
 
-  lodash.clonedeep@4.5.0:
-    resolution: {integrity: sha512-H5ZhCF25riFd9uB5UCkVKo61m3S/xZk1x4wA6yp/L3RFP6Z/eHH1ymQcGLo7J3GMPfm0V/7m1tryHuGVxpqEBQ==}
-
   lodash.escaperegexp@4.1.2:
     resolution: {integrity: sha512-TM9YBvyC84ZxE3rgfefxUWiQKLilstD6k7PTGt6wfbtXF8ixIJLOL3VYyV/z+ZiPLsVxAsKAFVwWlWeb2Y8Yyw==}
 
@@ -4427,11 +4416,6 @@ snapshots:
       wrap-ansi: 8.1.0
       wrap-ansi-cjs: wrap-ansi@7.0.0
 
-  '@jeromefitz/date-fns-tz@3.0.0-canary.8(date-fns@3.6.0)':
-    dependencies:
-      date-fns: 3.6.0
-      lodash.clonedeep: 4.5.0
-
   '@jridgewell/gen-mapping@0.3.5':
     dependencies:
       '@jridgewell/set-array': 1.2.1
@@ -5384,7 +5368,7 @@ snapshots:
       es-errors: 1.3.0
       is-data-view: 1.0.1
 
-  date-fns@3.6.0: {}
+  date-fns@4.1.0: {}
 
   debug@3.2.7:
     dependencies:
@@ -6661,8 +6645,6 @@ snapshots:
 
   lodash.capitalize@4.2.1: {}
 
-  lodash.clonedeep@4.5.0: {}
-
   lodash.escaperegexp@4.1.2: {}
 
   lodash.isplainobject@4.0.6: {}