diff --git a/build-constraints.yaml b/build-constraints.yaml
index c668c8ff..3dbeb11e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2738,7 +2738,7 @@ packages:
         - cheapskate
 
     "Ivan Miljenovic <Ivan.Miljenovic@gmail.com> @ivan-m":
-        - fgl
+        - fgl <5.8.1.0 # https://github.com/commercialhaskell/stackage/issues/6878
         - graphviz
         - wl-pprint-text
         - servant-pandoc