diff --git a/pkgs/development/python-modules/gdsfactory/default.nix b/pkgs/development/python-modules/gdsfactory/default.nix
index 56914ec6fb4f..7e35b8d2decd 100644
--- a/pkgs/development/python-modules/gdsfactory/default.nix
+++ b/pkgs/development/python-modules/gdsfactory/default.nix
@@ -46,14 +46,14 @@
 }:
 buildPythonPackage rec {
   pname = "gdsfactory";
-  version = "9.18.1";
+  version = "9.20.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "gdsfactory";
     repo = "gdsfactory";
     tag = "v${version}";
-    hash = "sha256-PPps3BaQbU7PCq+tlvjlPOurgBYHx/eGDEmlUmaB+O4=";
+    hash = "sha256-TpMi0Rv6sQA8uAPGl6iR1qgTU7havBlWmdz98DROoSk=";
   };
 
   build-system = [ flit-core ];