diff --git a/build-constraints.yaml b/build-constraints.yaml
index aeae5a9f..e37c7e2e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -413,7 +413,8 @@ packages:
         - Rasterific
         - svg-tree
         - rasterific-svg
-        - asciidiagram
+        # https://github.com/Twinside/asciidiagram/issues/4
+        # - asciidiagram
 
     "Patrick Brisbin @pbrisbin":
         - gravatar