diff --git a/dockercoins/rng/rng.py b/dockercoins/rng/rng.py
index d9376c51..b327e922 100644
--- a/dockercoins/rng/rng.py
+++ b/dockercoins/rng/rng.py
@@ -28,5 +28,5 @@ def rng(how_many_bytes):
 
 
 if __name__ == "__main__":
-    app.run(host="0.0.0.0", port=80)
+    app.run(host="0.0.0.0", port=80, threaded=False)