diff --git a/packages/production/pubspec.yaml b/packages/production/pubspec.yaml
index e77376d5..2b983a2a 100644
--- a/packages/production/pubspec.yaml
+++ b/packages/production/pubspec.yaml
@@ -23,7 +23,7 @@ dependencies:
       ref: sdk-2.12.x
       path: packages/pub_sub
   args: ^2.0.0
-  io: ^1.0.0
+  io: ^0.3.5
   logging: ^1.0.0
 dev_dependencies:
   pedantic: ^1.0.0
\ No newline at end of file