diff --git a/Stackage/Config.hs b/Stackage/Config.hs
index 80134880..6919a5da 100644
--- a/Stackage/Config.hs
+++ b/Stackage/Config.hs
@@ -330,9 +330,6 @@ defaultStablePackages ghcVer = unPackageMap $ execWriter $ do
     addRange "Michael Snoyman" "lens" "< 4.0"
     addRange "Michael Snoyman" "linear" "< 1.6"
 
-    -- https://github.com/snapframework/io-streams/issues/22
-    addRange "Michael Snoyman" "io-streams" "< 1.1.4.1"
-
     -- Depends on a newer version of happy
     addRange "Roman Cheplyaka <roma@ro-che.info>" "pretty-show" "<= 1.6.1"