diff --git a/pkgs/development/python-modules/pgpy/default.nix b/pkgs/development/python-modules/pgpy/default.nix
index 3c2e2c22a88b..a53711a4de62 100644
--- a/pkgs/development/python-modules/pgpy/default.nix
+++ b/pkgs/development/python-modules/pgpy/default.nix
@@ -25,6 +25,11 @@ buildPythonPackage rec {
     pytestCheckHook
   ];
 
+  disabledTests = [
+    # assertions contains extra: IDEA has been deprecated
+    "test_encrypt_bad_cipher"
+  ];
+
   meta = with lib; {
     homepage = "https://github.com/SecurityInnovation/PGPy";
     description = "Pretty Good Privacy for Python 2 and 3";