diff --git a/Formula/dart.rb b/Formula/dart.rb
index 25bec75..d1cbaf2 100644
--- a/Formula/dart.rb
+++ b/Formula/dart.rb
@@ -6,28 +6,28 @@
   homepage "https://dart.dev"
 
   head do
-    version "2.18.0-238.0.dev"
+    version "2.18.0-250.0.dev"
     if OS.mac? && Hardware::CPU.intel?
-      url "https://storage.googleapis.com/dart-archive/channels/dev/release/2.18.0-238.0.dev/sdk/dartsdk-macos-x64-release.zip"
-      sha256 "53416f9dc19993a80d99d42dab8521ccecf535060c72b91cec6fabddccf72860"
+      url "https://storage.googleapis.com/dart-archive/channels/dev/release/2.18.0-250.0.dev/sdk/dartsdk-macos-x64-release.zip"
+      sha256 "7bc855565725ff27103e638082cde197b4367dcc8932bee230398aaa6f02c8fb"
     elsif OS.mac? && Hardware::CPU.arm?
-      url "https://storage.googleapis.com/dart-archive/channels/dev/release/2.18.0-238.0.dev/sdk/dartsdk-macos-arm64-release.zip"
-      sha256 "70b5d9852db381caec742536ae252301491c6cb599ee464f37fd63638b80dd8b"
+      url "https://storage.googleapis.com/dart-archive/channels/dev/release/2.18.0-250.0.dev/sdk/dartsdk-macos-arm64-release.zip"
+      sha256 "80c694b9dd815a381d282f59b2a43a649e67fb77ee97ddcf581b07ccd4781633"
     elsif OS.linux? && Hardware::CPU.intel?
       if Hardware::CPU.is_64_bit?
-        url "https://storage.googleapis.com/dart-archive/channels/dev/release/2.18.0-238.0.dev/sdk/dartsdk-linux-x64-release.zip"
-        sha256 "66c907a877432ee5b2eda95649ceb15ddefcfedd527de2daad018966712f72b6"
+        url "https://storage.googleapis.com/dart-archive/channels/dev/release/2.18.0-250.0.dev/sdk/dartsdk-linux-x64-release.zip"
+        sha256 "62cfa9e4d27e231e3930c637d987b14ea793120ff0accfe6cd139cf7388c1eda"
       else
-        url "https://storage.googleapis.com/dart-archive/channels/dev/release/2.18.0-238.0.dev/sdk/dartsdk-linux-ia32-release.zip"
-        sha256 "0cc44d0c15797d7bd76df51855d82ed5c4ebd67ac9804287fc94100f27eb0f97"
+        url "https://storage.googleapis.com/dart-archive/channels/dev/release/2.18.0-250.0.dev/sdk/dartsdk-linux-ia32-release.zip"
+        sha256 "972cb02da59b9e272e129833a85680d0d701c64bb8706843a2a7fe4ae722a03c"
       end
     elsif OS.linux? && Hardware::CPU.arm?
       if Hardware::CPU.is_64_bit?
-        url "https://storage.googleapis.com/dart-archive/channels/dev/release/2.18.0-238.0.dev/sdk/dartsdk-linux-arm64-release.zip"
-        sha256 "97a73d10581823916670d1fba331f6eb734e56c663d2c55b083f686b5a96f145"
+        url "https://storage.googleapis.com/dart-archive/channels/dev/release/2.18.0-250.0.dev/sdk/dartsdk-linux-arm64-release.zip"
+        sha256 "d81fae42f548e553e518215f889b82e79ad12a419cf473f268b63c8f14303146"
       else
-        url "https://storage.googleapis.com/dart-archive/channels/dev/release/2.18.0-238.0.dev/sdk/dartsdk-linux-arm-release.zip"
-        sha256 "8c9abd9ba84c1494761b1c25b0ca6aaeabed004941c9d161b963a248c1dd719e"
+        url "https://storage.googleapis.com/dart-archive/channels/dev/release/2.18.0-250.0.dev/sdk/dartsdk-linux-arm-release.zip"
+        sha256 "a577be0876be1e209579d4c510a2784cf32dc8144bd655061710748f2e0f8d96"
       end
     end
   end