diff --git a/changelog.d/2644.misc.rst b/changelog.d/2644.misc.rst
new file mode 100644
index 0000000000..1aa9fbbe4e
--- /dev/null
+++ b/changelog.d/2644.misc.rst
@@ -0,0 +1 @@
+Fixed ``DeprecationWarning`` due to ``threading.Thread.setDaemon`` in tests -- by :user:`tirkarthi`
diff --git a/setuptools/tests/server.py b/setuptools/tests/server.py
index 7e2132301b..6717c05358 100644
--- a/setuptools/tests/server.py
+++ b/setuptools/tests/server.py
@@ -65,7 +65,7 @@ def __init__(
         http.server.HTTPServer.__init__(
             self, server_address, RequestHandlerClass)
         threading.Thread.__init__(self)
-        self.setDaemon(True)
+        self.daemon = True
         self.requests = []
 
     def run(self):