diff --git a/requirements.txt b/requirements.txt
index 5c1207d..70d0614 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,4 +24,4 @@ bravado-core==5.13.1
 lima==0.5
 pytest==5.0.1
 pytimeparse==1.1.8
-PyYAML==5.1.1
+PyYAML==5.4