diff --git a/sopel_modules/github/webhook.py b/sopel_modules/github/webhook.py
index 2fe594f..04d7323 100644
--- a/sopel_modules/github/webhook.py
+++ b/sopel_modules/github/webhook.py
@@ -99,6 +99,7 @@ def log_request(*args, **kw):
 
     def stop(self):
         self.server.shutdown()
+        self.server.server_close()
 
 
 def get_targets(repo):