diff --git a/Gemfile b/Gemfile
index d15e946..c1a3b10 100644
--- a/Gemfile
+++ b/Gemfile
@@ -11,7 +11,7 @@ gem 'devise', '4.7.1'
 gem 'image_processing', '1.10.0'
 gem 'jbuilder', '2.9.1'
 gem 'pg', '1.1.4'
-gem 'puma', '4.3.1'
+gem 'puma', '4.3.5'
 gem 'redis', '4.1.3'
 gem 'sassc-rails', '2.1.2'
 gem 'sidekiq', '6.0.4'
diff --git a/Gemfile.lock b/Gemfile.lock
index 1adb66b..6c6c39c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -126,14 +126,14 @@ GEM
     mini_portile2 (2.5.0)
     minitest (5.13.0)
     msgpack (1.3.1)
-    nio4r (2.5.2)
+    nio4r (2.5.4)
     nokogiri (1.11.1)
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
     orm_adapter (0.5.0)
     pg (1.1.4)
     public_suffix (4.0.1)
-    puma (4.3.1)
+    puma (4.3.5)
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)
@@ -263,7 +263,7 @@ DEPENDENCIES
   letter_opener_web (= 1.3.4)
   listen (= 3.1.5)
   pg (= 1.1.4)
-  puma (= 4.3.1)
+  puma (= 4.3.5)
   rails (~> 6.0.2, >= 6.0.2.1)
   redis (= 4.1.3)
   sassc-rails (= 2.1.2)