diff --git a/pkgs/applications/version-management/git-and-tools/git-machete/default.nix b/pkgs/applications/version-management/git-and-tools/git-machete/default.nix
index 6b6da70bb942..4f774f5b2f4a 100644
--- a/pkgs/applications/version-management/git-and-tools/git-machete/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-machete/default.nix
@@ -1,5 +1,7 @@
 { lib
 , buildPythonApplication
+, pytest-mock
+, pytestCheckHook
 , fetchFromGitHub
 , installShellFiles
 , git
@@ -21,7 +23,7 @@ buildPythonApplication rec {
 
   nativeBuildInputs = [ installShellFiles ];
 
-  checkInputs = [ git ];
+  checkInputs = [ git pytest-mock pytestCheckHook ];
 
   postInstall = ''
     installShellCompletion --bash --name git-machete completion/git-machete.completion.bash