diff --git a/Gemfile b/Gemfile
index e9d9d3f7..78654672 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,7 +10,7 @@ ruby "2.5.3"
 #RAILS
 gem 'rails', '~> 5.1.1'
 gem 'pg'
-gem 'puma', '~> 3.7'
+gem 'puma', '~> 4.3'
 
 #CORE INFRASTRUCTURE
 gem 'friendly_id', '~> 5.1.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index e8ea0f0d..9d6a96bb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -712,8 +712,10 @@ GEM
     polyamorous (1.3.1)
       activerecord (>= 3.0)
     public_suffix (3.0.0)
-    puma (3.9.1)
-    puma (3.9.1-java)
+    puma (4.3.11)
+      nio4r (~> 2.0)
+    puma (4.3.11-java)
+      nio4r (~> 2.0)
     rack (2.0.3)
     rack-cors (0.4.1)
     rack-protection (1.5.3)
@@ -894,7 +896,7 @@ DEPENDENCIES
   kaminari
   listen (>= 3.0.5, < 3.2)
   pg
-  puma (~> 3.7)
+  puma (~> 4.3)
   rack-cors
   rails (~> 5.1.1)
   rails-erd