diff --git a/build-constraints.yaml b/build-constraints.yaml
index 11209824..70b9f704 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -361,8 +361,7 @@ packages:
         - BlogLiterately-diagrams
         - diagrams
         - diagrams-builder
-        # https://github.com/diagrams/diagrams-haddock/issues/26
-        - diagrams-haddock < 0.3.0.8
+        - diagrams-haddock
         - diagrams-contrib
         - diagrams-core
         - diagrams-lib