diff --git a/operator/requirements.txt b/operator/requirements.txt
index 1340f76..fce557f 100644
--- a/operator/requirements.txt
+++ b/operator/requirements.txt
@@ -15,7 +15,7 @@ pyasn1==0.4.5
 pycparser==2.19
 pyjwt==1.7.1
 python-dateutil==2.8.0
-pyyaml==3.13
+pyyaml==5.4
 requests-oauthlib==1.2.0
 requests==2.21.0
 rsa==4.0