diff --git a/Gemfile b/Gemfile
index ca63de3..78ac58d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,7 +5,7 @@ ruby '2.6.5'
 
 gem 'rails', '~> 6.0.2'
 gem 'pg', '>= 0.18', '< 2.0'
-gem 'puma', '~> 4.1'
+gem 'puma', '~> 4.3'
 gem 'sass-rails', '>= 6'
 gem 'webpacker', '~> 4.0'
 gem 'turbolinks', '~> 5'
diff --git a/Gemfile.lock b/Gemfile.lock
index c8daefb..78b51f3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -108,7 +108,9 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (0.9.2)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.13.0)
@@ -116,7 +118,7 @@ GEM
     multi_json (1.14.1)
     multi_xml (0.6.0)
     multipart-post (2.1.1)
-    nio4r (2.5.2)
+    nio4r (2.5.8)
     nokogiri (1.10.7)
       mini_portile2 (~> 2.4.0)
     oauth2 (1.4.2)
@@ -136,7 +138,7 @@ GEM
     orm_adapter (0.5.0)
     pg (1.1.4)
     public_suffix (4.0.1)
-    puma (4.3.1)
+    puma (4.3.9)
       nio4r (~> 2.0)
     rack (2.0.8)
     rack-proxy (0.6.5)
@@ -248,7 +250,7 @@ DEPENDENCIES
   omniauth (= 1.9.0)
   omniauth-facebook (= 5.0.0)
   pg (>= 0.18, < 2.0)
-  puma (~> 4.1)
+  puma (~> 4.3)
   rails (~> 6.0.2)
   sass-rails (>= 6)
   selenium-webdriver