1 files changed, 1 insertions, 0 deletions

diff --git a/setup.cfg b/setup.cfg
index 6d7fc54..86536dc 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -20,6 +20,7 @@ classifier =
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
+    Programming Language :: Python :: 3.9
     Topic :: Internet :: Name Service (DNS)
 
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