diff --git a/pubspec.yaml b/pubspec.yaml
index e9dde16..437fcd5 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -4,7 +4,7 @@ version: 0.0.4
 repository: https://github.com/nschairer/keyboard_height_plugin
 
 environment:
-  sdk: '>=2.19.6 <3.0.0'
+  sdk: '>=2.18.0 <3.0.0'
   flutter: ">=2.5.0"
 
 dependencies: