diff --git a/pkgs/development/python-modules/batchspawner/default.nix b/pkgs/development/python-modules/batchspawner/default.nix
index 2b7cd1b21ecc..ec659fdf6d75 100644
--- a/pkgs/development/python-modules/batchspawner/default.nix
+++ b/pkgs/development/python-modules/batchspawner/default.nix
@@ -7,14 +7,14 @@
 
 buildPythonPackage rec {
   pname = "batchspawner";
-  version = "1.1.0";
+  version = "1.2.0";
   disabled = isPy27;
 
   src = fetchFromGitHub {
     owner = "jupyterhub";
     repo = "batchspawner";
-    rev = "v${version}";
-    sha256 = "0zv485b7fk5zlwgp5fyibanqzbpisdl2a0gz70fwdj4kl462axnw";
+    rev = "refs/tags/v${version}";
+    sha256 = "sha256-oyS47q+gsO7JmRsbVJXglZsSRfits5rS/nrHW5E7EV0=";
   };
 
   propagatedBuildInputs = [