diff --git a/build-constraints.yaml b/build-constraints.yaml
index 5feed0f1..898bd2d3 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -722,6 +722,19 @@ packages:
     "Francesco Mazzoli f@mazzo.li @bitonic":
         - language-c-quote
 
+    "Stian Håklev shaklev@gmail.com @houshuang":
+        - ipython-kernel
+        - ihaskell
+        - ihaskell-aeson
+        - ihaskell-basic
+        - ihaskell-blaze
+        - ihaskell-charts
+        - ihaskell-diagrams
+        - ihaskell-juicypixels
+        - ihaskell-magic
+        - ihaskell-parsec
+        - ihaskell-rlangqq
+
     "Stackage upper bounds":
 
         # Force a specific version that's compatible with transformers 0.3