diff --git a/packages/flutter_availability_data_interface/pubspec.yaml b/packages/flutter_availability_data_interface/pubspec.yaml
index 378b571..7a2e975 100644
--- a/packages/flutter_availability_data_interface/pubspec.yaml
+++ b/packages/flutter_availability_data_interface/pubspec.yaml
@@ -9,7 +9,7 @@ environment:
   flutter: ">=1.17.0"
 
 dependencies:
-  rxdart: ^0.27.0
+  rxdart: ">=0.27.0 <0.29.0"
 
 dev_dependencies:
   test: ^1.16.0