diff --git a/Gemfile b/Gemfile
index 53a4f4c..969bcd2 100644
--- a/Gemfile
+++ b/Gemfile
@@ -32,4 +32,4 @@ gem 'rake'
 gem "sinatra", "~> 2.0.3"
 gem "redis", "~> 4.0.1"
 gem "connection_pool", "~> 2.2.2"
-gem "puma", "~> 3.11.4"
+gem "puma", "~> 3.12.6"
diff --git a/Gemfile.lock b/Gemfile.lock
index aade578..3565728 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -36,7 +36,7 @@ GEM
     pathutil (0.16.1)
       forwardable-extended (~> 2.6)
     public_suffix (3.0.2)
-    puma (3.11.4)
+    puma (3.12.6)
     rack (2.0.5)
     rack-protection (2.0.3)
       rack
@@ -67,7 +67,7 @@ DEPENDENCIES
   jekyll (~> 3.6.2)
   jekyll-feed (~> 0.6)
   minima (~> 2.0)
-  puma (~> 3.11.4)
+  puma (~> 3.12.6)
   rake
   redis (~> 4.0.1)
   sinatra (~> 2.0.3)