diff --git a/v1.16-4.10/filters/Gemfile b/v1.16-4.10/filters/Gemfile
index 004f7a6..68164e6 100644
--- a/v1.16-4.10/filters/Gemfile
+++ b/v1.16-4.10/filters/Gemfile
@@ -1,7 +1,7 @@
 source 'https://rubygems.org'
 
 gem 'fluent-plugin-detect-exceptions', '0.0.16'
-gem 'fluent-plugin-prometheus', '2.2.0'
+gem 'fluent-plugin-prometheus', '2.2.1'
 gem 'fluent-plugin-dedot_filter', '1.0.0'
 gem 'fluent-plugin-geoip', '1.3.2'
 gem 'fluent-plugin-tag-normaliser', '0.1.3'
diff --git a/v1.16-4.10/filters/Gemfile.lock b/v1.16-4.10/filters/Gemfile.lock
index 0207cdd..33cac59 100644
--- a/v1.16-4.10/filters/Gemfile.lock
+++ b/v1.16-4.10/filters/Gemfile.lock
@@ -1,6 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
+    base64 (0.2.0)
     concurrent-ruby (1.2.3)
     console (1.23.7)
       fiber-annotation
@@ -37,7 +38,7 @@ GEM
     fluent-plugin-parser-logfmt (0.0.0)
       fluentd (>= 1, < 2)
       logfmt (~> 0.0.8)
-    fluent-plugin-prometheus (2.2.0)
+    fluent-plugin-prometheus (2.2.1)
       fluentd (>= 1.9.1, < 2)
       prometheus-client (>= 2.1.0)
     fluent-plugin-record-modifier (2.2.0)
@@ -53,11 +54,12 @@ GEM
       fluentd (>= 0.14, < 2)
       lru_redux (>= 1.0.0)
       user_agent_parser (>= 2.2.0)
-    fluentd (1.16.6)
+    fluentd (1.16.7)
       bundler
       console (< 1.24)
       cool.io (>= 1.4.5, < 2.0.0)
       http_parser.rb (>= 0.5.1, < 0.9.0)
+      logger (= 1.6.2)
       msgpack (>= 1.3.1, < 2.0.0)
       serverengine (>= 2.3.2, < 3.0.0)
       sigdump (~> 0.2.5)
@@ -69,12 +71,14 @@ GEM
     geoip-c (0.9.1)
     geoip2_c (0.3.4)
     http_parser.rb (0.8.0)
-    json (2.9.0)
+    json (2.9.1)
     logfmt (0.0.10)
+    logger (1.6.2)
     lru_redux (1.1.0)
     msgpack (1.7.5)
     myslog (0.1.1)
-    prometheus-client (4.2.1)
+    prometheus-client (4.2.4)
+      base64
     serverengine (2.3.2)
       sigdump (~> 0.2.2)
     sigdump (0.2.5)
@@ -100,7 +104,7 @@ DEPENDENCIES
   fluent-plugin-multi-format-parser (= 1.1.0)
   fluent-plugin-mysqlslowquery (= 0.0.9)
   fluent-plugin-parser-logfmt (= 0.0.0)
-  fluent-plugin-prometheus (= 2.2.0)
+  fluent-plugin-prometheus (= 2.2.1)
   fluent-plugin-record-modifier (= 2.2.0)
   fluent-plugin-rewrite-tag-filter (= 2.4.0)
   fluent-plugin-tag-normaliser (= 0.1.3)