diff --git a/build-constraints.yaml b/build-constraints.yaml
index 124609f8..80dd0205 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -9429,6 +9429,7 @@ expected-test-failures:
     - generics-eot # 0.4.0.1 ghc-9.6
     - percent-format # 0.0.2 ghc-9.6 https://github.com/rudymatela/percent-format/issues/1
     - pvar # 1.0.0.0 ghc-9.6
+    - tar-conduit # 0.3.2.1 https://github.com/snoyberg/tar-conduit/issues/33
 
     # Intermittent failures or unreliable. These tests may pass when
     # re-enabled, but will eventually fail again.