diff --git a/pkgs/development/python-modules/glyphslib/default.nix b/pkgs/development/python-modules/glyphslib/default.nix
index 67cd4093374b..6e960f9b62e0 100644
--- a/pkgs/development/python-modules/glyphslib/default.nix
+++ b/pkgs/development/python-modules/glyphslib/default.nix
@@ -16,15 +16,15 @@
 
 buildPythonPackage rec {
   pname = "glyphslib";
-  version = "6.0.7";
+  version = "6.1.0";
 
   format = "pyproject";
 
   src = fetchFromGitHub {
     owner = "googlefonts";
     repo = "glyphsLib";
-    rev = "v${version}";
-    sha256 = "sha256-PrHK9uEgs0DcNYW6EQ5Qw29CN4R2OcxOHrMeIswsxdA=";
+    rev = "refs/tags/v${version}";
+    sha256 = "sha256-TulMOubqY1hI1No0yW4d9Wo5xjqBm0qXqmo17+Fvq0w=";
   };
 
   SETUPTOOLS_SCM_PRETEND_VERSION = version;