bump to null-safe test
diff --git a/pubspec.yaml b/pubspec.yaml
index 257679b..9613c34 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -15,4 +15,4 @@
 
 dev_dependencies:
   pedantic: ^1.9.0
-  test: ^1.0.0
+  test: ^1.16.0-nullsafety