diff --git a/Gemfile b/Gemfile
index 0159c77..c5f4be1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gem 'rails', '~> 6.0.2', '>= 6.0.2.1'
 # Use postgres as the database for Active Record
 gem 'pg'
 # Use Puma as the app server
-gem 'puma', '~> 4.1'
+gem 'puma', '~> 4.3'
 # Use SCSS for stylesheets
 gem 'sass-rails', '>= 6'
 # Transpile app-like JavaScript. Read more: https://github.com/rails/webpacker
diff --git a/Gemfile.lock b/Gemfile.lock
index d32ca65..54eefef 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -125,7 +125,9 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (0.9.2)
-    mimemagic (0.3.4)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.14.0)
@@ -136,8 +138,8 @@ GEM
       activesupport
       nokogiri
       tzinfo
-    nio4r (2.5.2)
-    nio4r (2.5.2-java)
+    nio4r (2.5.7)
+    nio4r (2.5.7-java)
     nokogiri (1.10.8)
       mini_portile2 (~> 2.4.0)
     nokogiri (1.10.8-java)
@@ -150,9 +152,9 @@ GEM
       method_source (~> 0.9.0)
       spoon (~> 0.0)
     public_suffix (4.0.3)
-    puma (4.3.1)
+    puma (4.3.8)
       nio4r (~> 2.0)
-    puma (4.3.1-java)
+    puma (4.3.8-java)
       nio4r (~> 2.0)
     rack (2.2.2)
     rack-cors (1.1.1)
@@ -308,7 +310,7 @@ DEPENDENCIES
   nokogiri
   pg
   pry
-  puma (~> 4.1)
+  puma (~> 4.3)
   rack-cors
   rails (~> 6.0.2, >= 6.0.2.1)
   rspec-rails (~> 3.9)