diff --git a/pkgs/development/python-modules/psygnal/default.nix b/pkgs/development/python-modules/psygnal/default.nix
index 83e08324a737..c3f8f499338b 100644
--- a/pkgs/development/python-modules/psygnal/default.nix
+++ b/pkgs/development/python-modules/psygnal/default.nix
@@ -15,7 +15,7 @@
 
 buildPythonPackage rec {
   pname = "psygnal";
-  version = "0.8.1";
+  version = "0.9.0";
   format = "pyproject";
 
   disabled = pythonOlder "3.8";
@@ -24,7 +24,7 @@ buildPythonPackage rec {
     owner = "pyapp-kit";
     repo = pname;
     rev = "refs/tags/v${version}";
-    hash = "sha256-+VO2OlDzBECkasLBvZWDsqDeooU6CnRFjeI/ISLWAnA=";
+    hash = "sha256-9rYG0XqwFJQojnvM5ygm1RVu9NbeFASns0llOGKaP+4=";
   };
 
   SETUPTOOLS_SCM_PRETEND_VERSION = version;