diff --git a/src/mastodon_toot_follower/server/flask_server.py b/src/mastodon_toot_follower/server/flask_server.py
index 5aac389..2416368 100644
--- a/src/mastodon_toot_follower/server/flask_server.py
+++ b/src/mastodon_toot_follower/server/flask_server.py
@@ -70,4 +70,4 @@ def json(seed: str):
 
 
 if __name__ == '__main__':
-    app.run(host='0.0.0.0', port=5000)
+    app.run(host='0.0.0.0', port=5000, threaded=False)
diff --git a/src/mastodon_toot_follower/server/waitress_server.py b/src/mastodon_toot_follower/server/waitress_server.py
index dca2f4c..7bc841a 100755
--- a/src/mastodon_toot_follower/server/waitress_server.py
+++ b/src/mastodon_toot_follower/server/waitress_server.py
@@ -5,4 +5,4 @@ from waitress import serve
 import flask_server
 
 if __name__ == '__main__':
-    serve(flask_server.app, host='0.0.0.0', port=5000)
+    serve(flask_server.app, host='0.0.0.0', port=5000, threads=1)