diff --git a/Stackage/Config.hs b/Stackage/Config.hs
index a5df19b0..50bd365c 100644
--- a/Stackage/Config.hs
+++ b/Stackage/Config.hs
@@ -564,6 +564,7 @@ defaultStablePackages ghcVer requireHP = unPackageMap $ execWriter $ do
         addRange "Michael Snoyman" "criterion" "< 1.0.2"
     addRange "Michael Snoyman" "tasty" "< 0.10.0.1"
     addRange "Michael Snoyman" "haskell-packages" "< 0.2.4.3"
+    addRange "Michael Snoyman" "diagrams-lib" "< 1.2.0.4"
 
     when (ghcVer == GhcMajorVersion 7 8 && requireHP) $ do
         -- Yay workarounds for unnecessarily old versions