diff --git a/setup.py b/setup.py
index 38cbf0037b9e8624a38d42258029f292dd16c777..25ac5e93a44f259da7cd12fb840d328819044021 100644
--- a/setup.py
+++ b/setup.py
@@ -41,8 +41,6 @@ setup(
     url         = "https://git.fslab.de/jkonra2m/tinydtls-cython",
     py_modules  = [ "DTLSSocket.DTLSSocket"],
     cmdclass    = {"build_ext": prepare_tinydtls},
-    setup_requires = ['setuptools>=18.0','Cython<3'],
-    install_requires = ['Cython<3'],
     ext_modules = [Extension("DTLSSocket.dtls",
                 [
                  "DTLSSocket/dtls.pyx",