diff --git a/pubspec.yaml b/pubspec.yaml
index c4e7251..18c90d1 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -12,10 +12,10 @@ dependencies:
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
-  cupertino_icons: ^0.1.2
-  rxdart: ^0.21.0
-  dio: ^2.1.3
-  graphql_flutter: ^1.0.0+4
+  cupertino_icons: ">=0.1.2 <2.0.0"
+  rxdart: ">=0.21.0 <0.28.0"
+  dio: ">=2.1.3 <6.0.0"
+  graphql_flutter: ">=1.0.0+4 <6.0.0"
 
 dev_dependencies:
   flutter_test: