diff --git a/Gemfile b/Gemfile
index 35e5f81..edff67e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,7 +5,7 @@ gem "oj", "3.16.5"
 gem "json", "2.7.2"
 gem "async", "1.32.1"
 gem "async-http", "0.64.2"
-gem "fluentd", "1.17.0"
+gem "fluentd", "1.17.1"
 gem "fluent-plugin-azure-loganalytics", "0.7.0"
 gem "fluent-plugin-azurestorage-gen2", "0.3.5"
 gem "fluent-plugin-cloudwatch-logs", "0.14.3"
diff --git a/Gemfile.lock b/Gemfile.lock
index a569b3f..f7eaecb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -140,13 +140,14 @@ GEM
       aws-sdk-sqs (~> 1)
       fluentd (>= 0.12.0, < 2)
       yajl-ruby (~> 1.0)
-    fluentd (1.17.0)
+    fluentd (1.17.1)
       base64 (~> 0.2)
       bundler
       cool.io (>= 1.4.5, < 2.0.0)
       csv (~> 3.2)
       drb (~> 2.2)
       http_parser.rb (>= 0.5.1, < 0.9.0)
+      logger (~> 1.6)
       msgpack (>= 1.3.1, < 2.0.0)
       serverengine (>= 2.3.2, < 3.0.0)
       sigdump (~> 0.2.5)
@@ -162,6 +163,7 @@ GEM
     jmespath (1.6.2)
     json (2.7.2)
     libxml-ruby (5.0.3)
+    logger (1.6.0)
     ltsv (0.1.2)
     mime-types (3.4.1)
       mime-types-data (~> 3.2015)
@@ -247,7 +249,7 @@ DEPENDENCIES
   fluent-plugin-route (= 1.0.0)
   fluent-plugin-s3 (= 1.7.2)
   fluent-plugin-sqs (= 3.0.0)
-  fluentd (= 1.17.0)
+  fluentd (= 1.17.1)
   json (= 2.7.2)
   libxml-ruby (= 5.0.3)
   oj (= 3.16.5)