diff --git a/Stackage/Config.hs b/Stackage/Config.hs
index a0031e39..c2a5e199 100644
--- a/Stackage/Config.hs
+++ b/Stackage/Config.hs
@@ -135,6 +135,10 @@ defaultStablePackages ghcVer = unPackageMap $ execWriter $ do
     when (ghcVer < GhcMajorVersion 7 6) $ do
         addRange "FP Complete <michael@fpcomplete.com>" "hxt" "<= 9.3.0.1"
         addRange "FP Complete <michael@fpcomplete.com>" "shelly" "<= 1.0"
+
+        -- https://github.com/fpco/stackage/issues/120
+        addRange "FP Complete <michael@fpcomplete.com>" "fay" "< 0.18"
+        addRange "FP Complete <michael@fpcomplete.com>" "fay-base" "< 0.18"
     when (ghcVer >= GhcMajorVersion 7 6) $ do
         add "FP Complete <michael@fpcomplete.com>" "repa-devil"
     addRange "FP Complete <michael@fpcomplete.com>" "kure" "<= 2.4.10"