diff --git a/pkgs/development/python-modules/pydsdl/default.nix b/pkgs/development/python-modules/pydsdl/default.nix
index 08029d35df5b..b1c6fab9f8a8 100644
--- a/pkgs/development/python-modules/pydsdl/default.nix
+++ b/pkgs/development/python-modules/pydsdl/default.nix
@@ -2,14 +2,14 @@
 
  buildPythonPackage rec {
   pname = "pydsdl";
-  version = "1.9.4";
+  version = "1.12.1";
   disabled = pythonOlder "3.5"; # only python>=3.5 is supported
 
   src = fetchFromGitHub {
     owner = "UAVCAN";
     repo = pname;
     rev = version;
-    sha256 = "1hmmc4sg6dckbx2ghcjpi74yprapa6lkxxzy0h446mvyngp0kwfv";
+    sha256 = "sha256-5AwwqduIvLSZk6WcI59frwRKwjniQXfNWWVsy6V6I1E=";
   };
 
   # allow for writable directory for darwin