diff --git a/setup.cfg b/setup.cfg
index 29409659..92a9c6a7 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -16,14 +16,16 @@ classifiers =
     Development Status :: 4 - Beta
     License :: OSI Approved :: Apache Software License
     Intended Audience :: Science/Research
+    Intended Audience :: Developers
     Topic :: Scientific/Engineering
     Topic :: Scientific/Engineering :: Physics
     Programming Language :: Python :: 3
+    Programming Language :: Python :: 3 :: Only
     Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
-
+    Programming Language :: Python :: 3.10
 [options]
 package_dir =
     = src