diff --git a/docs/en/install-upgrade/upgrade-on-eck.asciidoc b/docs/en/install-upgrade/upgrade-on-eck.asciidoc
index 69e1b240f..15f46eed2 100644
--- a/docs/en/install-upgrade/upgrade-on-eck.asciidoc
+++ b/docs/en/install-upgrade/upgrade-on-eck.asciidoc
@@ -62,7 +62,7 @@ spec:
         - name: sysctl
           securityContext:
             privileged: true
-          command: ['sh', '-c', 'sysctl -w vm.max_map_count=262144']
+          command: ['sh', '-c', 'sysctl -w vm.max_map_count=1048576']
         containers:
         - name: elasticsearch
           resources:
@@ -96,7 +96,7 @@ spec:
         - name: sysctl
           securityContext:
             privileged: true
-          command: ['sh', '-c', 'sysctl -w vm.max_map_count=262144']
+          command: ['sh', '-c', 'sysctl -w vm.max_map_count=1048576']
         containers:
         - name: elasticsearch
           resources: