diff --git a/Gemfile b/Gemfile
index 4ecd439b5..354e38ff3 100644
--- a/Gemfile
+++ b/Gemfile
@@ -65,7 +65,7 @@ gem "omniauth", "~> 1.9" # A generalized Rack framework for multiple-provider au
 gem "omniauth-github", "~> 1.3" # OmniAuth strategy for GitHub
 gem "omniauth-twitter", "~> 1.4" # OmniAuth strategy for Twitter
 gem "pg", "~> 1.1" # Pg is the Ruby interface to the PostgreSQL RDBMS
-gem "puma", "~> 4.2" # Puma is a simple, fast, threaded, and highly concurrent HTTP 1.1 server
+gem "puma", "~> 4.3" # Puma is a simple, fast, threaded, and highly concurrent HTTP 1.1 server
 gem "pundit", "~> 2.1" # Object oriented authorization for Rails applications
 gem "pusher", "~> 1.3" # Ruby library for Pusher Channels HTTP API
 gem "pusher-push-notifications", "~> 1.1" # Pusher Push Notifications Ruby server SDK
diff --git a/Gemfile.lock b/Gemfile.lock
index c09020fab..4f12e4872 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -548,7 +548,7 @@ GEM
     pry-rails (0.3.9)
       pry (>= 0.10.4)
     public_suffix (4.0.1)
-    puma (4.2.1)
+    puma (4.3.0)
       nio4r (~> 2.0)
     pundit (2.1.0)
       activesupport (>= 3.0.0)
@@ -948,7 +948,7 @@ DEPENDENCIES
   pry (~> 0.12)
   pry-byebug (~> 3.7)
   pry-rails (~> 0.3)
-  puma (~> 4.2)
+  puma (~> 4.3)
   pundit (~> 2.1)
   pundit-matchers (~> 1.6)
   pusher (~> 1.3)