diff --git a/Gemfile b/Gemfile
index 96e954e..869d5f9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,7 @@ source "https://rubygems.org"
 gem "libxml-ruby", "4.0.0"
 gem "oj", "3.14.1"
 gem "json", "2.6.3"
-gem "async", "1.30.3"
+gem "async", "1.31.0"
 gem "async-http", "0.60.1"
 gem "fluentd", "1.15.3"
 gem "fluent-plugin-azure-loganalytics", "0.7.0"
diff --git a/Gemfile.lock b/Gemfile.lock
index 9ef667c..f4953d0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    async (1.30.3)
+    async (1.31.0)
       console (~> 1.10)
       nio4r (~> 2.3)
       timers (~> 4.1)
@@ -229,7 +229,7 @@ PLATFORMS
   x86_64-linux-musl
 
 DEPENDENCIES
-  async (= 1.30.3)
+  async (= 1.31.0)
   async-http (= 0.60.1)
   fluent-plugin-azure-loganalytics (= 0.7.0)
   fluent-plugin-azurestorage-gen2 (= 0.3.3)