diff --git a/README.md b/README.md
index d24151c57..09d004a9f 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ https://github.com/weka/csi-wekafs
 | WekaIO, Inc. | <csi@weka.io> | <https://weka.io> |
 
 ## Pre-requisite
-- Kubernetes cluster of version 1.18 or later. Although older versions from 1.13 and up should work, they were not tested
+- Kubernetes cluster of version 1.20 or later is recommended. Minimum version is 1.17
 - Access to terminal with `kubectl` installed
 - Weka system pre-configured and Weka client installed and registered in cluster for each Kubernetes node
 
diff --git a/README.md.gotmpl b/README.md.gotmpl
index c0de89c10..bb7e87288 100644
--- a/README.md.gotmpl
+++ b/README.md.gotmpl
@@ -11,7 +11,7 @@
 {{ template "chart.maintainersSection" . }}
 
 ## Pre-requisite
-- Kubernetes cluster of version 1.18 or later. Although older versions from 1.13 and up should work, they were not tested
+- Kubernetes cluster of version 1.20 or later is recommended. Minimum version is 1.17
 - Access to terminal with `kubectl` installed
 - Weka system pre-configured and Weka client installed and registered in cluster for each Kubernetes node