diff --git a/build-constraints.yaml b/build-constraints.yaml
index cffccc3d..96f615a2 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3066,7 +3066,7 @@ packages:
         - texmath
         - highlighting-kate
         - skylighting < 0.13 # https://github.com/commercialhaskell/stackage/issues/6663
-        - skylighting-core
+        - skylighting-core < 0.13 # https://github.com/commercialhaskell/stackage/issues/6663
         - pandoc-types
         - zip-archive
         - doclayout