diff --git a/build-constraints.yaml b/build-constraints.yaml
index 9a24b086..f9f6b79b 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -9136,6 +9136,7 @@ expected-test-failures:
     - mltool # https://github.com/Alexander-Ignatyev/mltool/issues/1
     - network # Unfortunately network failures seem to happen haphazardly
     - nsis # Intermittent on non-Windows systems
+    - tree-diff # 0.3.0.1 https://github.com/haskellari/tree-diff/issues/79
 
     # Requires running servers, accounts, or a specific environment.
     #