diff --git a/Gemfile b/Gemfile
index 525c14d..2690136 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,7 @@ gem 'rails', '~> 6.0.1'
 # gem 'sqlite3', '~> 1.4'
 gem 'pg'
 # Use Puma as the app server
-gem 'puma', '~> 4.1'
+gem 'puma', '~> 4.3'
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
 gem 'jbuilder', '~> 2.7'
 # Use Redis adapter to run Action Cable in production
diff --git a/Gemfile.lock b/Gemfile.lock
index f481fca..01c4753 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -103,18 +103,20 @@ GEM
     mime-types (3.3)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.1009)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_magick (4.9.5)
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.13.0)
     msgpack (1.3.1)
     netrc (0.11.0)
-    nio4r (2.5.2)
+    nio4r (2.5.8)
     nokogiri (1.10.5)
       mini_portile2 (~> 2.4.0)
     pg (1.1.4)
-    puma (4.3.0)
+    puma (4.3.12)
       nio4r (~> 2.0)
     rack (2.0.7)
     rack-cors (1.1.0)
@@ -195,7 +197,7 @@ DEPENDENCIES
   jbuilder (~> 2.7)
   listen (>= 3.0.5, < 3.2)
   pg
-  puma (~> 4.1)
+  puma (~> 4.3)
   rack-cors
   rails (~> 6.0.1)
   spring