diff --git a/build-constraints.yaml b/build-constraints.yaml
index a947d26e..4a5d2035 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3907,6 +3907,9 @@ packages:
 
         # https://github.com/commercialhaskell/stackage/issues/4290
         - http-client < 0.6
+
+        # https://github.com/leptonyu/yam/issues/2
+        - salak < 0.2
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of