diff --git a/setup.cfg b/setup.cfg
index a0bfbdf..ba2b2ac 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -13,10 +13,10 @@ description = Support library of the Open Reflectometry Standards Organization (
 long_description = file: README.rst
 url = https://github.com/reflectivity/orsopy
 license = MIT
-license-file = LICENSE
+license_file = LICENSE
 classifiers =
     Programming Language :: Python :: 3
-    License :: OSI Approved :: MIT License
+    MIT
     Operating System :: OS Independent
     Topic :: Scientific/Engineering
     Development Status :: 5 - Production/Stable