diff --git a/components/chart-controller/requirements.txt b/components/chart-controller/requirements.txt
index 241372ca6..0f987efde 100644
--- a/components/chart-controller/requirements.txt
+++ b/components/chart-controller/requirements.txt
@@ -14,7 +14,6 @@ oauthlib==3.1.0
 pyasn1==0.4.6
 pyasn1-modules==0.2.6
 python-dateutil==2.8.0
-PyYAML==5.1.2
 requests==2.22.0
 requests-oauthlib==1.2.0
 rsa==4.0