diff --git a/pkgs/development/python-modules/click/default.nix b/pkgs/development/python-modules/click/default.nix
index c78f8284111..6d865307f9b 100644
--- a/pkgs/development/python-modules/click/default.nix
+++ b/pkgs/development/python-modules/click/default.nix
@@ -5,6 +5,14 @@
 , importlib-metadata
 , locale
 , pytestCheckHook
+
+# large-rebuild downstream dependencies
+, flask
+, black
+
+# applications
+, magic-wormhole
+, mitmproxy
 }:
 
 buildPythonPackage rec {
@@ -29,6 +37,10 @@ buildPythonPackage rec {
     pytestCheckHook
   ];
 
+  passthru.tests = {
+    inherit black flask magic-wormhole mitmproxy;
+  };
+
   meta = with lib; {
     homepage = "https://click.palletsprojects.com/";
     description = "Create beautiful command line interfaces in Python";