diff --git a/pkgs/development/python-modules/aiosmtpd/default.nix b/pkgs/development/python-modules/aiosmtpd/default.nix
index dfecf0b966af..ff9cb38cd6ba 100644
--- a/pkgs/development/python-modules/aiosmtpd/default.nix
+++ b/pkgs/development/python-modules/aiosmtpd/default.nix
@@ -9,6 +9,10 @@
   pythonOlder,
   setuptools,
   typing-extensions,
+
+  # for passthru.tests
+  django,
+  aiosmtplib,
 }:
 
 buildPythonPackage rec {
@@ -49,6 +53,10 @@ buildPythonPackage rec {
 
   pythonImportsCheck = [ "aiosmtpd" ];
 
+  passthru.tests = {
+    inherit django aiosmtplib;
+  };
+
   meta = with lib; {
     description = "Asyncio based SMTP server";
     mainProgram = "aiosmtpd";