diff --git a/build-constraints.yaml b/build-constraints.yaml
index 10699b1f..2af20509 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1160,6 +1160,19 @@ packages:
     "Robert Massaioli robertmassaioli@gmail.com":
         - range
 
+    "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":
         # https://github.com/fpco/stackage/issues/537
         - zlib < 0.6