diff --git a/tools/scenario-player/requirements.txt b/tools/scenario-player/requirements.txt
index f3ba82d911..cc85b42909 100644
--- a/tools/scenario-player/requirements.txt
+++ b/tools/scenario-player/requirements.txt
@@ -1,3 +1,3 @@
 urwid>=2.0.1
 raiden>=0.10.0
-pyyaml==3.13
+pyyaml==4.2b4