Remove -dev.infinity in SDK upper constraint
diff --git a/pubspec.yaml b/pubspec.yaml
index d2617d9..626d97e 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -5,7 +5,7 @@
 description: Opinionated, automatic Dart source code formatter.
 homepage: https://github.com/dart-lang/dart_style
 environment:
-  sdk: ">=1.8.0 <2.0.0-dev.infinity"
+  sdk: ">=1.8.0 <2.0.0-dev"
 dependencies:
   analyzer: '^0.30.0'
   args: '>=0.12.1 <0.14.0'