diff --git a/build-constraints.yaml b/build-constraints.yaml
index 35a0dd51..448c9f56 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1098,7 +1098,7 @@ packages:
         - diagrams-core
         - diagrams-gtk
         - diagrams-html5
-        - diagrams-lib
+        - diagrams-lib < 1.4.5 # https://github.com/commercialhaskell/stackage/issues/6364
         - diagrams-postscript
         - diagrams-rasterific
         - diagrams-solve