diff --git a/pkgs/development/python-modules/cantools/default.nix b/pkgs/development/python-modules/cantools/default.nix
index 282ba38bf99e..44aed0ed2170 100644
--- a/pkgs/development/python-modules/cantools/default.nix
+++ b/pkgs/development/python-modules/cantools/default.nix
@@ -21,7 +21,7 @@ buildPythonPackage rec {
   version = "40.0.0";
   pyproject = true;
 
-  disabled = pythonOlder "3.8";
+  disabled = pythonOlder "3.9";
 
   src = fetchPypi {
     inherit pname version;