diff --git a/Gemfile b/Gemfile
index 9e82a0e..a97dd29 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,7 +7,7 @@ git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
 
 # gem "rails"
 
-gem "puma", "~> 6.6"
+gem "puma", "~> 7.0"
 
 gem "sinatra", "~> 4.1"
 
diff --git a/Gemfile.lock b/Gemfile.lock
index c43125a..2374181 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,7 +7,7 @@ GEM
     mustermann (3.0.3)
       ruby2_keywords (~> 0.0.1)
     nio4r (2.7.4)
-    puma (6.6.0)
+    puma (7.0.4)
       nio4r (~> 2.0)
     rack (3.1.16)
     rack-protection (4.1.1)
@@ -35,7 +35,7 @@ PLATFORMS
 DEPENDENCIES
   base64 (~> 0.3.0)
   cowsay (~> 0.3.0)
-  puma (~> 6.6)
+  puma (~> 7.0)
   rackup (~> 2.2)
   sinatra (~> 4.1)