diff --git a/test/cluster/keytar/requirements.txt b/test/cluster/keytar/requirements.txt
index 76649d9b728..694958b30d5 100644
--- a/test/cluster/keytar/requirements.txt
+++ b/test/cluster/keytar/requirements.txt
@@ -1,2 +1,2 @@
 Flask==0.12.3
-pyyaml==3.10
+pyyaml==4.2b1