diff --git a/ELK_helm_charts/helpers/helm-tester/requirements.txt b/ELK_helm_charts/helpers/helm-tester/requirements.txt
index 5c1ffd7..d7ac623 100644
--- a/ELK_helm_charts/helpers/helm-tester/requirements.txt
+++ b/ELK_helm_charts/helpers/helm-tester/requirements.txt
@@ -5,6 +5,6 @@ more-itertools==7.2.0
 pluggy==0.13.0
 py==1.8.0
 pytest==4.1.0
-PyYAML==4.2b4
+PyYAML==5.4
 six==1.12.0
 zipp==0.6.0