diff --git a/Gemfile b/Gemfile
index aea9e09..e3628c2 100644
--- a/Gemfile
+++ b/Gemfile
@@ -35,7 +35,7 @@ gem 'net-smtp', '0.5.0'
 gem 'nokogiri', '1.16.5'
 gem 'octokit', '9.1.0'
 gem 'pdd', '0.24.0'
-gem 'rack', '3.1.6'
+gem 'rack', '3.1.7'
 gem 'rack-test', '2.1.0'
 gem 'rackup', '2.1.0'
 gem 'rake', '13.2.1', require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index 315c757..084570c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -136,7 +136,7 @@ GEM
     power_assert (2.0.3)
     public_suffix (5.0.5)
     racc (1.8.0)
-    rack (3.1.6)
+    rack (3.1.7)
     rack-protection (4.0.0)
       base64 (>= 0.1.0)
       rack (>= 3.0.0, < 4)
@@ -255,7 +255,7 @@ DEPENDENCIES
   nokogiri (= 1.16.5)
   octokit (= 9.1.0)
   pdd (= 0.24.0)
-  rack (= 3.1.6)
+  rack (= 3.1.7)
   rack-test (= 2.1.0)
   rackup (= 2.1.0)
   rake (= 13.2.1)