diff --git a/setup.py b/setup.py
index 6fb0966..7c2b51c 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@
     ext_modules=[
         Extension(
             'permanentbis', ['./src/permanent.c'],
-            extra_compile_args=["-Ofast", "-march=native"],
+            extra_compile_args=["-Ofast"],
             include_dirs=[numpy.get_include()]),
     ],
 )
diff --git a/tox.ini b/tox.ini
index b6c56cd..222e2c0 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist =py310, py311, py312
+envlist =py310, py311, py312, py313
 skip_missing_interpreters = True
 requires = setuptools >= 75.0.0
            wheel