diff --git a/build-constraints.yaml b/build-constraints.yaml
index b7684446..a15bc323 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8114,6 +8114,7 @@ expected-test-failures:
     - control-dsl # 0.2.1.3
     - cryptostore # 0.2.1.0
     - curl-runnings # 0.17.0
+    - debian # 4.0.2 https://github.com/clinty/debian-haskell/issues/2
     - dbus # 1.2.24 https://github.com/commercialhaskell/stackage/issues/6373
     - dimensional # 1.4
     - download # 0.3.2.7 https://github.com/fpco/stackage/issues/2811