diff --git a/app/requirements.txt b/app/requirements.txt
index 76b3dd0..ef3e4c8 100644
--- a/app/requirements.txt
+++ b/app/requirements.txt
@@ -1,4 +1,4 @@
 flask==0.12
 tensorflow==1.2.0
 magenta==0.2.1
-waitress==1.0.2
\ No newline at end of file
+waitress==2.1.1
\ No newline at end of file