diff --git a/pkgs/applications/version-management/git-machete/default.nix b/pkgs/applications/version-management/git-machete/default.nix
index a4d1ffb090f0..26cce4b25c9d 100644
--- a/pkgs/applications/version-management/git-machete/default.nix
+++ b/pkgs/applications/version-management/git-machete/default.nix
@@ -12,13 +12,13 @@
 
 buildPythonApplication rec {
   pname = "git-machete";
-  version = "3.17.9";
+  version = "3.20.0";
 
   src = fetchFromGitHub {
     owner = "virtuslab";
     repo = pname;
     rev = "v${version}";
-    hash = "sha256-oU4c57XU/DLGjOl/CyCt6oG3QaB2xnrOEg+sUAd7sww=";
+    hash = "sha256-6TntyAkDIcCVcAsNdAlgvKYO7Db0oMDWKW92rMRIDI4=";
   };
 
   nativeBuildInputs = [ installShellFiles ];
@@ -29,6 +29,12 @@ buildPythonApplication rec {
     pytestCheckHook
   ];
 
+  disabledTests = [
+    # Requires fully functioning shells including zsh modules and bash
+    # completion.
+    "completion_e2e"
+  ];
+
   postInstall = ''
     installShellCompletion --bash --name git-machete completion/git-machete.completion.bash
     installShellCompletion --zsh --name _git-machete completion/git-machete.completion.zsh