diff --git a/pubspec.yaml b/pubspec.yaml
index d1318c7..fd74980 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -8,11 +8,11 @@ description: A Dart library containing convenient extension methods on basic Dar
 repository: https://github.com/google/dart-basics
 
 environment:
-  sdk: ">=2.17.0 <3.0.0"
+  sdk: ">=2.17.0 <4.0.0"
 
 dependencies:
-  characters: ^1.2.1
+  characters: ^1.3.0
 
 dev_dependencies:
-  pedantic: ^1.8.0
-  test: ^1.16.0
+  pedantic: ^1.11.1
+  test: ^1.24.6