diff --git a/build-constraints.yaml b/build-constraints.yaml
index ca21efd8..0691f04e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3345,6 +3345,7 @@ expected-test-failures:
     - GLFW-b # X
     - HTF # Requires shell script and are incompatible with sandboxed package databases
     - HaRe # # Needs ~/.ghc-mod/cabal-helper https://github.com/fpco/stackage/pull/906
+    - IPv6DB
     - amqp
     - aws # AWS Credentials
     - bindings-GLFW # Expects running X server