diff --git a/example/project/pubspec.yaml b/example/project/pubspec.yaml
index a722bc6..324c8f2 100644
--- a/example/project/pubspec.yaml
+++ b/example/project/pubspec.yaml
@@ -3,7 +3,7 @@ version: 0.0.0
 publish_to: none
 
 environment:
-  sdk: '>=2.12.0 <3.0.0'
+  sdk: '>=2.19.0 <3.0.0'
 
 dev_dependencies:
   build_runner: ^2.1.2