diff --git a/pkgs/development/python-modules/orjson/default.nix b/pkgs/development/python-modules/orjson/default.nix
index b707a9e83ebb..5ceddcfdd394 100644
--- a/pkgs/development/python-modules/orjson/default.nix
+++ b/pkgs/development/python-modules/orjson/default.nix
@@ -23,7 +23,7 @@
 
 buildPythonPackage rec {
   pname = "orjson";
-  version = "3.9.13";
+  version = "3.9.15";
   pyproject = true;
 
   disabled = pythonOlder "3.7";
@@ -32,13 +32,13 @@ buildPythonPackage rec {
     owner = "ijl";
     repo = "orjson";
     rev = "refs/tags/${version}";
-    hash = "sha256-p6nkzEHFTKCBr7Wte2wvzh1TlzwweADZON8gm2pT224=";
+    hash = "sha256-6fcj64d/uFCxaez+xxOdHd+NqILKOPqK+YlxYX7D0DI=";
   };
 
   cargoDeps = rustPlatform.fetchCargoTarball {
     inherit src;
     name = "${pname}-${version}";
-    hash = "sha256-2c8XgQILhAvR8HUqoEIOfYeiV1lR9UyIJXWDuNeVZsE=";
+    hash = "sha256-/Aa3saUP4QjSBIS9T8Vd0yggiJn2SIk7dYMA5icb1yA=";
   };
 
   maturinBuildFlags = [ "--interpreter ${python.executable}" ];