diff --git a/pkgs/development/python-modules/pycrdt-websocket/default.nix b/pkgs/development/python-modules/pycrdt-websocket/default.nix
index 3ad166d57515..4e727cc58316 100644
--- a/pkgs/development/python-modules/pycrdt-websocket/default.nix
+++ b/pkgs/development/python-modules/pycrdt-websocket/default.nix
@@ -19,7 +19,7 @@
 
 buildPythonPackage rec {
   pname = "pycrdt-websocket";
-  version = "0.13.4";
+  version = "0.13.5";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
@@ -28,7 +28,7 @@ buildPythonPackage rec {
     owner = "jupyter-server";
     repo = "pycrdt-websocket";
     rev = "refs/tags/v${version}";
-    hash = "sha256-nkm1ZQ6bYBRDDoREovhEthDZoHApYxzAnwVgDgpWW/s=";
+    hash = "sha256-dzlmgxrdQ97+DO/vDtoX7PIOpngEE+FGUGq1vdVmhNw=";
   };
 
   build-system = [ hatchling ];