diff --git a/pkgs/development/python-modules/cocotb/default.nix b/pkgs/development/python-modules/cocotb/default.nix
index 5b25f03143ca..c5fb1a3df803 100644
--- a/pkgs/development/python-modules/cocotb/default.nix
+++ b/pkgs/development/python-modules/cocotb/default.nix
@@ -1,6 +1,7 @@
 {
   lib,
   buildPythonPackage,
+  pythonAtLeast,
   fetchFromGitHub,
   setuptools,
   setuptools-scm,
@@ -19,6 +20,11 @@ buildPythonPackage rec {
   version = "2.0.1";
   format = "setuptools";
 
+  # RuntimeError: cocotb 2.0.1 only supports a maximum Python version of 3.13.
+  # You can suppress this error by defining the environment variable COCOTB_IGNORE_PYTHON_REQUIRES
+  # There is no guarantee this will work and no support will be provided.
+  disabled = pythonAtLeast "3.14";
+
   # pypi source doesn't include tests
   src = fetchFromGitHub {
     owner = "cocotb";