diff --git a/pkgs/development/python-modules/asdf/default.nix b/pkgs/development/python-modules/asdf/default.nix
index 0363eae2919..f4a45ecaf9a 100644
--- a/pkgs/development/python-modules/asdf/default.nix
+++ b/pkgs/development/python-modules/asdf/default.nix
@@ -94,5 +94,7 @@ buildPythonPackage rec {
     homepage = "https://github.com/asdf-format/asdf";
     license = licenses.bsd3;
     maintainers = with maintainers; [ ];
+    # Many tests fail, according to Hydra
+    broken = true;
   };
 }