diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1df6240..14c84cb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 2.4.0
+
+- Changed to Flutter 3.27.0 and Dart 3.6.0 or higher
+
 ## 2.3.0
 
 - Use SystemContextMenu for iOS
diff --git a/example/pubspec.lock b/example/pubspec.lock
index 6ea4c04..0b96f3b 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -5,30 +5,30 @@ packages:
     dependency: transitive
     description:
       name: _fe_analyzer_shared
-      sha256: f256b0c0ba6c7577c15e2e4e114755640a875e885099367bf6e012b19314c834
+      sha256: "16e298750b6d0af7ce8a3ba7c18c69c3785d11b15ec83f6dcd0ad2a0009b3cab"
       url: "https://pub.dev"
     source: hosted
-    version: "72.0.0"
+    version: "76.0.0"
   _macros:
     dependency: transitive
     description: dart
     source: sdk
-    version: "0.3.2"
+    version: "0.3.3"
   adaptive_dialog:
     dependency: "direct main"
     description:
       path: ".."
       relative: true
     source: path
-    version: "2.3.0"
+    version: "2.4.0"
   analyzer:
     dependency: transitive
     description:
       name: analyzer
-      sha256: b652861553cd3990d8ed361f7979dc6d7053a9ac8843fa73820ab68ce5410139
+      sha256: "1f14db053a8c23e260789e9b0980fa27f2680dd640932cae5e1137cce0e46e1e"
       url: "https://pub.dev"
     source: hosted
-    version: "6.7.0"
+    version: "6.11.0"
   animations:
     dependency: transitive
     description:
@@ -73,50 +73,50 @@ packages:
     dependency: transitive
     description:
       name: build
-      sha256: "80184af8b6cb3e5c1c4ec6d8544d27711700bc3e6d2efad04238c7b5290889f0"
+      sha256: cef23f1eda9b57566c81e2133d196f8e3df48f244b317368d65c5943d91148f0
       url: "https://pub.dev"
     source: hosted
-    version: "2.4.1"
+    version: "2.4.2"
   build_config:
     dependency: transitive
     description:
       name: build_config
-      sha256: bf80fcfb46a29945b423bd9aad884590fb1dc69b330a4d4700cac476af1708d1
+      sha256: "4ae2de3e1e67ea270081eaee972e1bd8f027d459f249e0f1186730784c2e7e33"
       url: "https://pub.dev"
     source: hosted
-    version: "1.1.1"
+    version: "1.1.2"
   build_daemon:
     dependency: transitive
     description:
       name: build_daemon
-      sha256: "79b2aef6ac2ed00046867ed354c88778c9c0f029df8a20fe10b5436826721ef9"
+      sha256: "294a2edaf4814a378725bfe6358210196f5ea37af89ecd81bfa32960113d4948"
       url: "https://pub.dev"
     source: hosted
-    version: "4.0.2"
+    version: "4.0.3"
   build_resolvers:
     dependency: transitive
     description:
       name: build_resolvers
-      sha256: "339086358431fa15d7eca8b6a36e5d783728cf025e559b834f4609a1fcfb7b0a"
+      sha256: "99d3980049739a985cf9b21f30881f46db3ebc62c5b8d5e60e27440876b1ba1e"
       url: "https://pub.dev"
     source: hosted
-    version: "2.4.2"
+    version: "2.4.3"
   build_runner:
     dependency: "direct dev"
     description:
       name: build_runner
-      sha256: "028819cfb90051c6b5440c7e574d1896f8037e3c96cf17aaeb054c9311cfbf4d"
+      sha256: "74691599a5bc750dc96a6b4bfd48f7d9d66453eab04c7f4063134800d6a5c573"
       url: "https://pub.dev"
     source: hosted
-    version: "2.4.13"
+    version: "2.4.14"
   build_runner_core:
     dependency: transitive
     description:
       name: build_runner_core
-      sha256: f8126682b87a7282a339b871298cc12009cb67109cfa1614d6436fb0289193e0
+      sha256: "22e3aa1c80e0ada3722fe5b63fd43d9c8990759d0a2cf489c8c5d7b2bdebc021"
       url: "https://pub.dev"
     source: hosted
-    version: "7.3.2"
+    version: "8.0.0"
   built_collection:
     dependency: transitive
     description:
@@ -129,10 +129,10 @@ packages:
     dependency: transitive
     description:
       name: built_value
-      sha256: c7913a9737ee4007efedaffc968c049fd0f3d0e49109e778edc10de9426005cb
+      sha256: "28a712df2576b63c6c005c465989a348604960c0958d28be5303ba9baa841ac2"
       url: "https://pub.dev"
     source: hosted
-    version: "8.9.2"
+    version: "8.9.3"
   characters:
     dependency: transitive
     description:
@@ -169,10 +169,10 @@ packages:
     dependency: transitive
     description:
       name: collection
-      sha256: ee67cb0715911d28db6bf4af1026078bd6f0128b07a5f66fb2ed94ec6783c09a
+      sha256: a1ace0a119f20aabc852d165077c036cd864315bd99b7eaa10a60100341941bf
       url: "https://pub.dev"
     source: hosted
-    version: "1.18.0"
+    version: "1.19.0"
   convert:
     dependency: transitive
     description:
@@ -307,10 +307,10 @@ packages:
     dependency: transitive
     description:
       name: flutter_plugin_android_lifecycle
-      sha256: "9b78450b89f059e96c9ebb355fa6b3df1d6b330436e0b885fb49594c41721398"
+      sha256: "615a505aef59b151b46bbeef55b36ce2b6ed299d160c51d84281946f0aa0ce0e"
       url: "https://pub.dev"
     source: hosted
-    version: "2.0.23"
+    version: "2.0.24"
   flutter_riverpod:
     dependency: "direct main"
     description:
@@ -365,10 +365,10 @@ packages:
     dependency: "direct main"
     description:
       name: go_router
-      sha256: "8660b74171fafae4aa8202100fa2e55349e078281dadc73a241eb8e758534d9d"
+      sha256: "2fd11229f59e23e967b0775df8d5948a519cd7e1e8b6e849729e010587b46539"
       url: "https://pub.dev"
     source: hosted
-    version: "14.6.1"
+    version: "14.6.2"
   go_router_builder:
     dependency: "direct dev"
     description:
@@ -405,18 +405,18 @@ packages:
     dependency: transitive
     description:
       name: http_multi_server
-      sha256: "97486f20f9c2f7be8f514851703d0119c3596d14ea63227af6f7a481ef2b2f8b"
+      sha256: aa6199f908078bb1c5efb8d8638d4ae191aac11b311132c3ef48ce352fb52ef8
       url: "https://pub.dev"
     source: hosted
-    version: "3.2.1"
+    version: "3.2.2"
   http_parser:
     dependency: transitive
     description:
       name: http_parser
-      sha256: "2aa08ce0341cc9b354a498388e30986515406668dbcc4f7c950c3e715496693b"
+      sha256: "76d306a1c3afb33fe82e2bbacad62a61f409b5634c915fceb0d799de1a913360"
       url: "https://pub.dev"
     source: hosted
-    version: "4.0.2"
+    version: "4.1.1"
   image_picker:
     dependency: transitive
     description:
@@ -429,10 +429,10 @@ packages:
     dependency: transitive
     description:
       name: image_picker_android
-      sha256: "8faba09ba361d4b246dc0a17cb4289b3324c2b9f6db7b3d457ee69106a86bd32"
+      sha256: fa8141602fde3f7e2f81dbf043613eb44dfa325fa0bcf93c0f142c9f7a2c193e
       url: "https://pub.dev"
     source: hosted
-    version: "0.8.12+17"
+    version: "0.8.12+18"
   image_picker_for_web:
     dependency: transitive
     description:
@@ -501,10 +501,10 @@ packages:
     dependency: transitive
     description:
       name: io
-      sha256: "2ec25704aba361659e10e3e5f5d672068d332fc8ac516421d483a11e5cbd061e"
+      sha256: dfd5a80599cf0165756e3181807ed3e77daf6dd4137caaad72d0b7931597650b
       url: "https://pub.dev"
     source: hosted
-    version: "1.0.4"
+    version: "1.0.5"
   js:
     dependency: transitive
     description:
@@ -525,18 +525,18 @@ packages:
     dependency: transitive
     description:
       name: leak_tracker
-      sha256: "3f87a60e8c63aecc975dda1ceedbc8f24de75f09e4856ea27daf8958f2f0ce05"
+      sha256: "7bb2830ebd849694d1ec25bf1f44582d6ac531a57a365a803a6034ff751d2d06"
       url: "https://pub.dev"
     source: hosted
-    version: "10.0.5"
+    version: "10.0.7"
   leak_tracker_flutter_testing:
     dependency: transitive
     description:
       name: leak_tracker_flutter_testing
-      sha256: "932549fb305594d82d7183ecd9fa93463e9914e1b67cacc34bc40906594a1806"
+      sha256: "9491a714cca3667b60b5c420da8217e6de0d1ba7a5ec322fab01758f6998f379"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.5"
+    version: "3.0.8"
   leak_tracker_testing:
     dependency: transitive
     description:
@@ -549,10 +549,10 @@ packages:
     dependency: transitive
     description:
       name: lints
-      sha256: "3315600f3fb3b135be672bf4a178c55f274bebe368325ae18462c89ac1e3b413"
+      sha256: "4a16b3f03741e1252fda5de3ce712666d010ba2122f8e912c94f9f7b90e1a4c3"
       url: "https://pub.dev"
     source: hosted
-    version: "5.0.0"
+    version: "5.1.0"
   logging:
     dependency: transitive
     description:
@@ -581,10 +581,10 @@ packages:
     dependency: transitive
     description:
       name: macros
-      sha256: "0acaed5d6b7eab89f63350bccd82119e6c602df0f391260d0e32b5e23db79536"
+      sha256: "1d9e801cd66f7ea3663c45fc708450db1fa57f988142c64289142c9b7ee80656"
       url: "https://pub.dev"
     source: hosted
-    version: "0.1.2-main.4"
+    version: "0.1.3-main.0"
   matcher:
     dependency: transitive
     description:
@@ -637,10 +637,10 @@ packages:
     dependency: transitive
     description:
       name: package_config
-      sha256: "1c5b77ccc91e4823a5af61ee74e6b972db1ef98c2ff5a18d3161c982a55448bd"
+      sha256: "92d4488434b520a62570293fbd33bb556c7d49230791c1b4bbd973baf6d2dc67"
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.0"
+    version: "2.1.1"
   path:
     dependency: transitive
     description:
@@ -709,10 +709,10 @@ packages:
     dependency: transitive
     description:
       name: pub_semver
-      sha256: "40d3ab1bbd474c4c2328c91e3a7df8c6dd629b79ece4c4bd04bee496a224fb0c"
+      sha256: "7b3cfbf654f3edd0c6298ecd5be782ce997ddf0e00531b9464b55245185bbbbd"
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.4"
+    version: "2.1.5"
   pubspec_parse:
     dependency: transitive
     description:
@@ -757,10 +757,10 @@ packages:
     dependency: transitive
     description:
       name: shelf
-      sha256: ad29c505aee705f41a4d8963641f91ac4cee3c8fad5947e033390a7bd8180fa4
+      sha256: e7dd780a7ffb623c57850b33f43309312fc863fb6aa3d276a754bb299839ef12
       url: "https://pub.dev"
     source: hosted
-    version: "1.4.1"
+    version: "1.4.2"
   shelf_web_socket:
     dependency: transitive
     description:
@@ -781,7 +781,7 @@ packages:
     dependency: transitive
     description: flutter
     source: sdk
-    version: "0.0.99"
+    version: "0.0.0"
   source_gen:
     dependency: transitive
     description:
@@ -794,10 +794,10 @@ packages:
     dependency: transitive
     description:
       name: source_helper
-      sha256: "6adebc0006c37dd63fe05bca0a929b99f06402fc95aa35bf36d67f5c06de01fd"
+      sha256: "86d247119aedce8e63f4751bd9626fc9613255935558447569ad42f9f5b48b3c"
       url: "https://pub.dev"
     source: hosted
-    version: "1.3.4"
+    version: "1.3.5"
   source_span:
     dependency: transitive
     description:
@@ -810,10 +810,10 @@ packages:
     dependency: transitive
     description:
       name: stack_trace
-      sha256: "73713990125a6d93122541237550ee3352a2d84baad52d375a4cad2eb9b7ce0b"
+      sha256: "9f47fd3630d76be3ab26f0ee06d213679aa425996925ff3feffdec504931c377"
       url: "https://pub.dev"
     source: hosted
-    version: "1.11.1"
+    version: "1.12.0"
   state_notifier:
     dependency: transitive
     description:
@@ -834,18 +834,18 @@ packages:
     dependency: transitive
     description:
       name: stream_transform
-      sha256: "14a00e794c7c11aa145a170587321aedce29769c08d7f58b1d141da75e3b1c6f"
+      sha256: ad47125e588cfd37a9a7f86c7d6356dde8dfe89d071d293f80ca9e9273a33871
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.0"
+    version: "2.1.1"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
-      sha256: "556692adab6cfa87322a115640c11f13cb77b3f076ddcc5d6ae3c20242bedcde"
+      sha256: "688af5ed3402a4bde5b3a6c15fd768dbf2621a614950b17f04626c431ab3c4c3"
       url: "https://pub.dev"
     source: hosted
-    version: "1.2.0"
+    version: "1.3.0"
   subscription_holder:
     dependency: transitive
     description:
@@ -866,18 +866,18 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: "5b8a98dafc4d5c4c9c72d8b31ab2b23fc13422348d2997120294d3bac86b4ddb"
+      sha256: "664d3a9a64782fcdeb83ce9c6b39e78fd2971d4e37827b9b06c3aa1edc5e760c"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.2"
+    version: "0.7.3"
   timing:
     dependency: transitive
     description:
       name: timing
-      sha256: "70a3b636575d4163c477e6de42f247a23b315ae20e86442bebe32d3cabf61c32"
+      sha256: "62ee18aca144e4a9f29d212f5a4c6a053be252b895ab14b5821996cff4ed90fe"
       url: "https://pub.dev"
     source: hosted
-    version: "1.0.1"
+    version: "1.0.2"
   tinycolor2:
     dependency: transitive
     description:
@@ -914,10 +914,10 @@ packages:
     dependency: transitive
     description:
       name: url_launcher_ios
-      sha256: e43b677296fadce447e987a2f519dcf5f6d1e527dc35d01ffab4fff5b8a7063e
+      sha256: "16a513b6c12bb419304e72ea0ae2ab4fed569920d1c7cb850263fe3acc824626"
       url: "https://pub.dev"
     source: hosted
-    version: "6.3.1"
+    version: "6.3.2"
   url_launcher_linux:
     dependency: transitive
     description:
@@ -930,10 +930,10 @@ packages:
     dependency: transitive
     description:
       name: url_launcher_macos
-      sha256: "769549c999acdb42b8bcfa7c43d72bf79a382ca7441ab18a808e101149daf672"
+      sha256: "17ba2000b847f334f16626a574c702b196723af2a289e7a93ffcb79acff855c2"
       url: "https://pub.dev"
     source: hosted
-    version: "3.2.1"
+    version: "3.2.2"
   url_launcher_platform_interface:
     dependency: transitive
     description:
@@ -994,18 +994,18 @@ packages:
     dependency: transitive
     description:
       name: vm_service
-      sha256: "5c5f338a667b4c644744b661f309fb8080bb94b18a7e91ef1dbd343bed00ed6d"
+      sha256: f6be3ed8bd01289b34d679c2b62226f63c0e69f9fd2e50a6b3c1c729a961041b
       url: "https://pub.dev"
     source: hosted
-    version: "14.2.5"
+    version: "14.3.0"
   watcher:
     dependency: transitive
     description:
       name: watcher
-      sha256: "3d2ad6751b3c16cf07c7fca317a1413b3f26530319181b37e3b9039b84fc01d8"
+      sha256: "69da27e49efa56a15f8afe8f4438c4ec02eff0a117df1b22ea4aad194fe1c104"
       url: "https://pub.dev"
     source: hosted
-    version: "1.1.0"
+    version: "1.1.1"
   web:
     dependency: transitive
     description:
@@ -1047,5 +1047,5 @@ packages:
     source: hosted
     version: "3.1.2"
 sdks:
-  dart: ">=3.5.0 <4.0.0"
+  dart: ">=3.6.0 <4.0.0"
   flutter: ">=3.24.0"
diff --git a/lib/src/helper/macos_draggable_dialog.dart b/lib/src/helper/macos_draggable_dialog.dart
index 9bc9874..33a6a9f 100644
--- a/lib/src/helper/macos_draggable_dialog.dart
+++ b/lib/src/helper/macos_draggable_dialog.dart
@@ -26,8 +26,8 @@ class _MacosDraggableDialogState extends State<MacosDraggableDialog> {
       CupertinoColors.darkBackgroundGray,
     );
     final innerBorderColor = brightness.resolve(
-      Colors.white.withOpacity(0.45),
-      Colors.white.withOpacity(0.15),
+      Colors.white.withValues(alpha: 0.45),
+      Colors.white.withValues(alpha: 0.15),
     );
     return Transform.translate(
       offset: _offset,
@@ -48,8 +48,8 @@ class _MacosDraggableDialogState extends State<MacosDraggableDialog> {
           foregroundDecoration: BoxDecoration(
             border: Border.all(
               color: brightness.resolve(
-                Colors.black.withOpacity(0.23),
-                Colors.black.withOpacity(0.76),
+                Colors.black.withValues(alpha: 0.23),
+                Colors.black.withValues(alpha: 0.76),
               ),
             ),
             borderRadius: borderRadius,
@@ -69,7 +69,7 @@ class _MacosDraggableDialogState extends State<MacosDraggableDialog> {
                       color: Color.lerp(color, Colors.white, 0.12),
                       boxShadow: [
                         BoxShadow(
-                          color: Colors.black.withOpacity(0.2),
+                          color: Colors.black.withValues(alpha: 0.2),
                           blurRadius: 1,
                         ),
                       ],
diff --git a/pubspec.yaml b/pubspec.yaml
index faded91..a1fb5c5 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,12 +1,12 @@
 name: adaptive_dialog
 description: Show alert dialog or modal action sheet adaptively according to platform.
-version: 2.3.0
+version: 2.4.0
 repository: https://github.com/mono0926/adaptive_dialog
 funding:
   - https://github.com/sponsors/mono0926
 environment:
-  sdk: ^3.5.0
-  flutter: '>=3.24.0'
+  sdk: ^3.6.0
+  flutter: '>=3.27.0'
 dependencies:
   animations: ^2.0.3
   collection: ^1.15.0