diff --git a/setup.py b/setup.py
index 79ee44a..19705b4 100644
--- a/setup.py
+++ b/setup.py
@@ -15,11 +15,11 @@
                  'License :: OSI Approved :: BSD License',
                  'Intended Audience :: Science/Research',
                  'Operating System :: OS Independent',
-                 'Programming Language :: Python :: 3',
-                 'Programming Language :: Python :: 3.4',
-                 'Programming Language :: Python :: 3.5',
                  'Programming Language :: Python :: 3.6',
-                 'Programming Language :: Python :: 3.7'],
+                 'Programming Language :: Python :: 3.7',
+                 'Programming Language :: Python :: 3.8',
+                 'Programming Language :: Python :: 3.9'
+                ],
 
     keywords='lammps, mpi4py',
     packages=find_packages(exclude=["*tests*"]),