diff --git a/setup.cfg b/setup.cfg
index 043fff73a..2f3ee032f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [metadata]
-license_file = LICENSE.txt
+license_files = LICENSE.txt
 
 [mypy]
 warn_return_any = True