diff --git a/Gemfile b/Gemfile
index 97014a9..c9b6db9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -15,7 +15,7 @@ gem "net-imap"
 gem "net-pop"
 gem "net-smtp"
 gem "pg", ">= 0.18", "< 2.0"
-gem "puma", "~> 5.0" # Use Puma as the app server
+gem "puma", "~> 5.6" # Use Puma as the app server
 gem "rails", "~> 6.1"
 gem "rails-i18n"
 gem "ransack" # Search
diff --git a/Gemfile.lock b/Gemfile.lock
index 29ddff9..cb77287 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -198,7 +198,7 @@ GEM
       byebug (~> 11.0)
       pry (~> 0.13.0)
     public_suffix (4.0.6)
-    puma (5.6.1)
+    puma (5.6.4)
       nio4r (~> 2.0)
     racc (1.6.0)
     rack (2.2.3)
@@ -398,7 +398,7 @@ DEPENDENCIES
   net-smtp
   pg (>= 0.18, < 2.0)
   pry-byebug
-  puma (~> 5.0)
+  puma (~> 5.6)
   rails (~> 6.1)
   rails-i18n
   ransack