diff --git a/Formula/dart@3.0.0.rb b/Formula/dart@3.0.0.rb
index 6cc5002..98d20d9 100644
--- a/Formula/dart@3.0.0.rb
+++ b/Formula/dart@3.0.0.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_0_0 < Formula
+class DartAT300 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/Formula/dart@3.0.1.rb b/Formula/dart@3.0.1.rb
index acc33ba..6a2dc92 100644
--- a/Formula/dart@3.0.1.rb
+++ b/Formula/dart@3.0.1.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_0_1 < Formula
+class DartAT301 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/Formula/dart@3.0.2.rb b/Formula/dart@3.0.2.rb
index d442950..af9dafe 100644
--- a/Formula/dart@3.0.2.rb
+++ b/Formula/dart@3.0.2.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_0_2 < Formula
+class DartAT302 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/Formula/dart@3.0.3.rb b/Formula/dart@3.0.3.rb
index fe82b9d..c236b5c 100644
--- a/Formula/dart@3.0.3.rb
+++ b/Formula/dart@3.0.3.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_0_3 < Formula
+class DartAT303 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/Formula/dart@3.0.4.rb b/Formula/dart@3.0.4.rb
index 887e06e..118da4f 100644
--- a/Formula/dart@3.0.4.rb
+++ b/Formula/dart@3.0.4.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_0_4 < Formula
+class DartAT304 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/Formula/dart@3.0.5.rb b/Formula/dart@3.0.5.rb
index 9609859..395d392 100644
--- a/Formula/dart@3.0.5.rb
+++ b/Formula/dart@3.0.5.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_0_5 < Formula
+class DartAT305 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/Formula/dart@3.0.6.rb b/Formula/dart@3.0.6.rb
index a5f114f..4a84f1f 100644
--- a/Formula/dart@3.0.6.rb
+++ b/Formula/dart@3.0.6.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_0_6 < Formula
+class DartAT306 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/Formula/dart@3.0.7.rb b/Formula/dart@3.0.7.rb
index 815d2e6..94d9bcd 100644
--- a/Formula/dart@3.0.7.rb
+++ b/Formula/dart@3.0.7.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_0_7 < Formula
+class DartAT307 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/Formula/dart@3.1.0.rb b/Formula/dart@3.1.0.rb
index 7405b2d..9e42342 100644
--- a/Formula/dart@3.1.0.rb
+++ b/Formula/dart@3.1.0.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_1_0 < Formula
+class DartAT310 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/Formula/dart@3.1.1.rb b/Formula/dart@3.1.1.rb
index a0ce4b0..a209962 100644
--- a/Formula/dart@3.1.1.rb
+++ b/Formula/dart@3.1.1.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_1_1 < Formula
+class DartAT311 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/Formula/dart@3.1.2.rb b/Formula/dart@3.1.2.rb
index 10e8f8e..7424170 100644
--- a/Formula/dart@3.1.2.rb
+++ b/Formula/dart@3.1.2.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_1_2 < Formula
+class DartAT312 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/Formula/dart@3.1.3.rb b/Formula/dart@3.1.3.rb
index 721937a..85badc8 100644
--- a/Formula/dart@3.1.3.rb
+++ b/Formula/dart@3.1.3.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_1_3 < Formula
+class DartAT313 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/Formula/dart@3.1.4.rb b/Formula/dart@3.1.4.rb
index 59d0686..d99dcb7 100644
--- a/Formula/dart@3.1.4.rb
+++ b/Formula/dart@3.1.4.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_1_4 < Formula
+class DartAT314 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/Formula/dart@3.1.5.rb b/Formula/dart@3.1.5.rb
index b1a7e1b..d2b5eb6 100644
--- a/Formula/dart@3.1.5.rb
+++ b/Formula/dart@3.1.5.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_1_5 < Formula
+class DartAT315 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/Formula/dart@3.2.0.rb b/Formula/dart@3.2.0.rb
index 29989a4..dd35778 100644
--- a/Formula/dart@3.2.0.rb
+++ b/Formula/dart@3.2.0.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_2_0 < Formula
+class DartAT320 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/Formula/dart@3.2.1.rb b/Formula/dart@3.2.1.rb
index 892fe6e..0ccadd8 100644
--- a/Formula/dart@3.2.1.rb
+++ b/Formula/dart@3.2.1.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_2_1 < Formula
+class DartAT321 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/Formula/dart@3.2.2.rb b/Formula/dart@3.2.2.rb
index 1b8ce5e..2081fef 100644
--- a/Formula/dart@3.2.2.rb
+++ b/Formula/dart@3.2.2.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_2_2 < Formula
+class DartAT322 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/Formula/dart@3.2.3.rb b/Formula/dart@3.2.3.rb
index 084eb20..b71d85d 100644
--- a/Formula/dart@3.2.3.rb
+++ b/Formula/dart@3.2.3.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_2_3 < Formula
+class DartAT323 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/Formula/dart@3.2.4.rb b/Formula/dart@3.2.4.rb
index 587483f..7e562ea 100644
--- a/Formula/dart@3.2.4.rb
+++ b/Formula/dart@3.2.4.rb
@@ -1,7 +1,7 @@
 # typed: false
 # frozen_string_literal: true
 
-class DartAT3_2_4 < Formula
+class DartAT324 < Formula
   desc "SDK"
   homepage "https://dart.dev"
 
diff --git a/lib/update_homebrew.dart b/lib/update_homebrew.dart
index 65288a5..9309fc6 100644
--- a/lib/update_homebrew.dart
+++ b/lib/update_homebrew.dart
@@ -54,7 +54,7 @@ Future<bool> writeVersion(String contents, String version, String repository,
     bool dryRun, bool isLatest) async {
   final formula = File(p.join(repository, 'Formula/dart@$version.rb'));
   contents = contents
-      .replaceFirst('class Dart', 'class DartAT${version.replaceAll(".", "_")}')
+      .replaceFirst('class Dart', 'class DartAT${version.replaceAll(".", "")}')
       .replaceFirst(
           RegExp(r'head do.*dart-beta ships the same binaries"',
               dotAll: true, multiLine: true),