diff --git a/Stackage/Config.hs b/Stackage/Config.hs
index e13071a6..ecaa221e 100644
--- a/Stackage/Config.hs
+++ b/Stackage/Config.hs
@@ -553,12 +553,13 @@ defaultStablePackages ghcVer requireHP = unPackageMap $ execWriter $ do
             [ "repa repa-io repa-algorithms repa-devil JuicyPixels-repa"
             ]
 
-    mapM_ (add "Nikita Volkov <nikita.y.volkov@mail.ru>") $
-        words "hasql hasql-postgres hasql-backend postgresql-binary" ++
-        words "stm-containers focus list-t slave-thread partial-handler" ++
-        words "neat-interpolation cases" ++
-        words "base-prelude mtl-prelude"
-    addRange "Nikita Volkov <nikita.y.volkov@mail.ru>" "mtl-prelude" "< 2"
+    when (ghcVer >= GhcMajorVersion 7 8 && not requireHP) $ do
+        mapM_ (add "Nikita Volkov <nikita.y.volkov@mail.ru>") $
+            words "hasql hasql-postgres hasql-backend postgresql-binary" ++
+            words "stm-containers focus list-t slave-thread partial-handler" ++
+            words "neat-interpolation cases" ++
+            words "base-prelude mtl-prelude"
+        addRange "Nikita Volkov <nikita.y.volkov@mail.ru>" "mtl-prelude" "< 2"
 
     -- https://github.com/fpco/stackage/issues/217
     addRange "Michael Snoyman" "transformers" "< 0.4"