diff --git a/Gemfile b/Gemfile
index d60accc..c848b99 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 # Bundle edge Rails instead: gem "rails", github: "rails/rails", branch: "main"
 gem "rails", "~> 8.0.1"
-gem "nio4r", "2.5.9"
+gem "nio4r", "2.7.4"
 # The modern asset pipeline for Rails [https://github.com/rails/propshaft]
 gem "propshaft"
 # Use sqlite3 as the database for Active Record
diff --git a/Gemfile.lock b/Gemfile.lock
index 4450f0e..6a2cc10 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -196,7 +196,7 @@ GEM
     net-smtp (0.5.1)
       net-protocol
     net-ssh (7.3.0)
-    nio4r (2.5.9)
+    nio4r (2.7.4)
     nokogiri (1.18.2-aarch64-linux-gnu)
       racc (~> 1.4)
     nokogiri (1.18.2-aarch64-linux-musl)
@@ -433,7 +433,7 @@ DEPENDENCIES
   kamal
   levenshtein (~> 0.2.2)
   net-smtp (~> 0.5.0)
-  nio4r (= 2.5.9)
+  nio4r (= 2.7.4)
   propshaft
   puma (>= 5.0)
   rails (~> 8.0.1)