diff --git a/cluster/addons/fluentd-elasticsearch/fluentd-es-image/Gemfile b/cluster/addons/fluentd-elasticsearch/fluentd-es-image/Gemfile
index dd617eafc3f..145b15fc737 100644
--- a/cluster/addons/fluentd-elasticsearch/fluentd-es-image/Gemfile
+++ b/cluster/addons/fluentd-elasticsearch/fluentd-es-image/Gemfile
@@ -2,11 +2,11 @@ source 'https://rubygems.org'
 
 gem 'fluentd', '<=1.2.4'
 gem 'activesupport', '~>5.2.1'
-gem 'fluent-plugin-kubernetes_metadata_filter', '~>2.0.0'
-gem 'fluent-plugin-elasticsearch', '~>2.11.5'
-gem 'fluent-plugin-systemd', '~>1.0.1'
-gem 'fluent-plugin-detect-exceptions', '~>0.0.11'
-gem 'fluent-plugin-prometheus', '~>1.0.1'
-gem 'fluent-plugin-multi-format-parser', '~>1.0.0'
 gem 'fluent-plugin-concat', '~>2.3.0'
+gem 'fluent-plugin-detect-exceptions', '~>0.0.11'
+gem 'fluent-plugin-elasticsearch', '~>2.11.5'
+gem 'fluent-plugin-kubernetes_metadata_filter', '~>2.0.0'
+gem 'fluent-plugin-multi-format-parser', '~>1.0.0'
+gem 'fluent-plugin-prometheus', '~>1.0.1'
+gem 'fluent-plugin-systemd', '~>1.0.1'
 gem 'oj', '~>3.6.5'