diff --git a/metricbeat/README.md b/metricbeat/README.md
index 1e53f4795..f5b59fd40 100644
--- a/metricbeat/README.md
+++ b/metricbeat/README.md
@@ -6,7 +6,7 @@ This helm chart is a lightweight way to configure and run our official [Metricbe
 
 ## Requirements
 
-* Kubernetes >= 1.8
+* Kubernetes >= 1.9
 * [Helm](https://helm.sh/) >= 2.8.0
 
 ## Installing