diff --git a/packages/datetime/package.json b/packages/datetime/package.json
index 09ccb7ed2a..ff3617d010 100644
--- a/packages/datetime/package.json
+++ b/packages/datetime/package.json
@@ -44,8 +44,8 @@
         "@blueprintjs/icons": "workspace:^",
         "@blueprintjs/select": "workspace:^",
         "classnames": "^2.3.1",
-        "date-fns": "^2.28.0",
-        "date-fns-tz": "^2.0.0",
+        "date-fns": "^4.1.0",
+        "date-fns-tz": "^3.2.0",
         "react-day-picker": "7.4.9",
         "tslib": "~2.6.2"
     },
diff --git a/packages/datetime2/package.json b/packages/datetime2/package.json
index d7352b2f77..5b89471bdc 100644
--- a/packages/datetime2/package.json
+++ b/packages/datetime2/package.json
@@ -41,7 +41,7 @@
         "@blueprintjs/datetime": "workspace:^",
         "@blueprintjs/icons": "workspace:^",
         "classnames": "^2.3.1",
-        "date-fns": "^2.28.0",
+        "date-fns": "^4.1.0",
         "react-day-picker": "^8.10.0",
         "react-innertext": "^1.1.5",
         "tslib": "~2.6.2"
diff --git a/packages/docs-app/package.json b/packages/docs-app/package.json
index 7e87181e83..9a40d203d0 100644
--- a/packages/docs-app/package.json
+++ b/packages/docs-app/package.json
@@ -30,7 +30,7 @@
         "@documentalist/client": "^5.0.0",
         "chroma-js": "^2.4.2",
         "classnames": "^2.3.1",
-        "date-fns": "^2.28.0",
+        "date-fns": "^4.1.0",
         "dedent": "^1.5.1",
         "downloadjs": "^1.4.7",
         "lodash": "^4.17.21",
diff --git a/yarn.lock b/yarn.lock
index 8ac02bc4cf..c1e1fc09bf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -377,7 +377,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@babel/runtime@npm:^7.12.5, @babel/runtime@npm:^7.21.0, @babel/runtime@npm:^7.5.5, @babel/runtime@npm:^7.8.4, @babel/runtime@npm:^7.8.7":
+"@babel/runtime@npm:^7.12.5, @babel/runtime@npm:^7.5.5, @babel/runtime@npm:^7.8.4, @babel/runtime@npm:^7.8.7":
   version: 7.23.2
   resolution: "@babel/runtime@npm:7.23.2"
   dependencies:
@@ -497,7 +497,7 @@ __metadata:
     "@blueprintjs/node-build-scripts": "workspace:^"
     "@blueprintjs/test-commons": "workspace:^"
     classnames: "npm:^2.3.1"
-    date-fns: "npm:^2.28.0"
+    date-fns: "npm:^4.1.0"
     enzyme: "npm:^3.11.0"
     karma: "npm:^6.4.2"
     mocha: "npm:^10.2.0"
@@ -531,8 +531,8 @@ __metadata:
     "@blueprintjs/select": "workspace:^"
     "@blueprintjs/test-commons": "workspace:^"
     classnames: "npm:^2.3.1"
-    date-fns: "npm:^2.28.0"
-    date-fns-tz: "npm:^2.0.0"
+    date-fns: "npm:^4.1.0"
+    date-fns-tz: "npm:^3.2.0"
     enzyme: "npm:^3.11.0"
     karma: "npm:^6.4.2"
     mocha: "npm:^10.2.0"
@@ -604,7 +604,7 @@ __metadata:
     chroma-js: "npm:^2.4.2"
     classnames: "npm:^2.3.1"
     copy-webpack-plugin: "npm:^12.0.2"
-    date-fns: "npm:^2.28.0"
+    date-fns: "npm:^4.1.0"
     dedent: "npm:^1.5.1"
     downloadjs: "npm:^1.4.7"
     lodash: "npm:^4.17.21"
@@ -5934,21 +5934,19 @@ __metadata:
   languageName: node
   linkType: hard
 
-"date-fns-tz@npm:^2.0.0":
-  version: 2.0.0
-  resolution: "date-fns-tz@npm:2.0.0"
+"date-fns-tz@npm:^3.2.0":
+  version: 3.2.0
+  resolution: "date-fns-tz@npm:3.2.0"
   peerDependencies:
-    date-fns: ">=2.0.0"
-  checksum: 31cacb83c675ef8c2cf31d21c298ab6d74c5e975412dd804664d031ac0f2f03ed5bfb2a950fa15a321bbbcb90b833c300823fbceba0133680065a71894cc1170
+    date-fns: ^3.0.0 || ^4.0.0
+  checksum: 3f43300a4335d59f3515dc5196c66b4b56ef2af129eb82e4445ce0983e8ef31a5d038bc0406d669946bbbcf52ed953527527aa28b4a810995d6631a54655abcc
   languageName: node
   linkType: hard
 
-"date-fns@npm:^2.28.0":
-  version: 2.30.0
-  resolution: "date-fns@npm:2.30.0"
-  dependencies:
-    "@babel/runtime": "npm:^7.21.0"
-  checksum: e4b521fbf22bc8c3db332bbfb7b094fd3e7627de0259a9d17c7551e2d2702608a7307a449206065916538e384f37b181565447ce2637ae09828427aed9cb5581
+"date-fns@npm:^4.1.0":
+  version: 4.1.0
+  resolution: "date-fns@npm:4.1.0"
+  checksum: b79ff32830e6b7faa009590af6ae0fb8c3fd9ffad46d930548fbb5acf473773b4712ae887e156ba91a7b3dc30591ce0f517d69fd83bd9c38650fdc03b4e0bac8
   languageName: node
   linkType: hard