diff --git a/openapi-client/dart-dio/pubspec.yaml b/openapi-client/dart-dio/pubspec.yaml
index fb676f6..5805a31 100644
--- a/openapi-client/dart-dio/pubspec.yaml
+++ b/openapi-client/dart-dio/pubspec.yaml
@@ -7,7 +7,7 @@ environment:
   sdk: '>=2.12.0 <3.0.0'
 
 dependencies:
-  dio: '>=4.0.1 <5.0.0'
+  dio: ">=4.0.1 <6.0.0"
   one_of: '>=1.5.0 <2.0.0'
   one_of_serializer: '>=1.5.0 <2.0.0'
   built_value: '>=8.4.0 <9.0.0'