diff --git a/requirements.txt b/requirements.txt
index cd450e9..e7ac94a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,3 +20,5 @@ tensorboard==1.6.0
 tensorflow==1.6.0
 termcolor==1.1.0
 Werkzeug==0.14.1
+pygame==1.9.3
+