diff --git a/tests/all-package-defaults.nix b/tests/all-package-defaults.nix
index b243b896..44dd0399 100644
--- a/tests/all-package-defaults.nix
+++ b/tests/all-package-defaults.nix
@@ -59,6 +59,9 @@ let
     # xdotool is not available on darwin
     "fontpreview"
 
+    # 2025-09-27 build failure
+    "open-policy-agent"
+
     # 2025-09-26 build failure
     "verilator"