diff --git a/pkgs/development/python-modules/magicgui/default.nix b/pkgs/development/python-modules/magicgui/default.nix
index e437ee7290b2..d6c6108d52be 100644
--- a/pkgs/development/python-modules/magicgui/default.nix
+++ b/pkgs/development/python-modules/magicgui/default.nix
@@ -12,15 +12,15 @@
 , napari # a reverse-dependency, for tests
 }: buildPythonPackage rec {
   pname = "magicgui";
-  version = "0.3.7";
+  version = "0.5.1";
 
   format = "pyproject";
 
   src = fetchFromGitHub {
     owner = "napari";
     repo = "magicgui";
-    rev = "v${version}";
-    sha256 = "sha256-LYXNNr5lS3ibQk2NIopZkB8kzC7j3yY8moGMk0Gr+hU=";
+    rev = "refs/tags/v${version}";
+    sha256 = "sha256-fVfBQaaT8/lUGqZRXjOPgvkC01Izb8Sxqn7RCqnW9bo=";
   };
 
   SETUPTOOLS_SCM_PRETEND_VERSION = version;