diff --git a/Stackage/Config.hs b/Stackage/Config.hs
index ea6303e6..080d44af 100644
--- a/Stackage/Config.hs
+++ b/Stackage/Config.hs
@@ -146,6 +146,9 @@ defaultStablePackages = unPackageMap $ execWriter $ do
 
     -- https://github.com/fpco/stackage/issues/49
     addRange "Michael Snoyman" "NumInstances" "< 1.2"
+
+    -- https://github.com/fpco/stackage/issues/50
+    addRange "Michael Snoyman" "free" "< 3.4"
   where
     add maintainer package = addRange maintainer package "-any"
     addRange maintainer package range =