diff --git a/Gemfile b/Gemfile
index 32cf247..4795995 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,7 +13,7 @@ gem 'resque-scheduler', '4.4.0'
 gem 'rest-client', '2.1.0'
 gem 'simple-rss', '1.3.3'
 gem 'feedjira', '3.1.2'
-gem 'puma', '5.5.1'
+gem 'puma', '5.6.4'
 gem 'tzinfo-data', '1.2021.1'
 gem 'sentry-rails', '4.7.3'
 gem 'sentry-resque', '4.7.3'
diff --git a/Gemfile.lock b/Gemfile.lock
index e9eddb9..afd4032 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -154,7 +154,7 @@ GEM
     pg (1.2.3)
     psych (3.3.2)
     public_suffix (4.0.6)
-    puma (5.5.1)
+    puma (5.6.4)
       nio4r (~> 2.0)
     raabro (1.4.0)
     racc (1.6.0)
@@ -326,7 +326,7 @@ DEPENDENCIES
   launchy (= 2.5.0)
   nokogiri (= 1.12.5)
   pg (= 1.2.3)
-  puma (= 5.5.1)
+  puma (= 5.6.4)
   rails (= 6.1.4.1)
   reek (= 6.0.3)
   resque (= 2.0.0)