diff --git a/build-constraints.yaml b/build-constraints.yaml
index 27ce7a26..eb2c2148 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -9162,6 +9162,9 @@ skipped-benchmarks:
     - tree-diff
     - vector-binary-instances
 
+    # Misc dependency issues
+    - heftia-effects # requires "eff" package -- doesn't exist?
+
     # Timeouts
     - gogol-youtube