diff --git a/Gemfile b/Gemfile
index a2e2e700..17c9b950 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,6 +9,6 @@ gem 'fluent-plugin-elasticsearch', '5.2.5'
 gem 'fluent-plugin-kubernetes_metadata_filter', '3.5.0'
 gem 'fluent-plugin-multi-format-parser', '1.1.0'
 gem 'fluent-plugin-opensearch', '1.0.10'
-gem 'fluent-plugin-prometheus', '2.1.0'
+gem 'fluent-plugin-prometheus', '2.2.0'
 gem 'fluent-plugin-systemd', '1.0.5'
 gem 'oj', '3.16.4'