diff --git a/Stackage/Config.hs b/Stackage/Config.hs
index 46557d2c..69b614b5 100644
--- a/Stackage/Config.hs
+++ b/Stackage/Config.hs
@@ -203,6 +203,9 @@ defaultStablePackages ghcVer requireHP = unPackageMap $ execWriter $ do
 
     mapM_ (add "Alan Zimmerman") $ words
         "hjsmin language-javascript"
+    -- Requires newer alex than provided with HP
+    when (GhcMajorVersion == 7 4 && requireHP) $
+        addRange "Alan Zimmerman" "language-javascript" "== 0.5.9"
 
     mapM_ (add "Jasper Van der Jeugt") $ words
         "blaze-html blaze-markup stylish-haskell"