diff --git a/Gemfile b/Gemfile
index 8fd65ce0..15f74284 100644
--- a/Gemfile
+++ b/Gemfile
@@ -14,7 +14,7 @@ gem 'omniauth-github', '~> 1.3.0'
 gem 'omniauth-twitter', '~> 1.4.0'
 gem 'pg', '~> 0.18'
 gem 'pg_search', '~> 2.0'
-gem 'puma', '~> 5.0'
+gem 'puma', '~> 5.6'
 gem 'rack-attack'
 gem 'rails', '5.2.5'
 gem 'redis', '~>3.2'
diff --git a/Gemfile.lock b/Gemfile.lock
index cb2ef3be..3e9f5bcb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,8 +17,13 @@ PATH
       slim-rails
 
 GEM
-  remote: https://rubygems.org/
   remote: https://rails-assets.org/
+  specs:
+    rails-assets-semantic-ui-calendar (0.0.8)
+    rails-assets-svgxuse (1.2.6)
+
+GEM
+  remote: https://rubygems.org/
   specs:
     Ascii85 (1.0.3)
     actioncable (5.2.5)
@@ -314,7 +319,7 @@ GEM
     net-ssh (5.2.0)
     netrc (0.11.0)
     newrelic_rpm (5.7.0.350)
-    nio4r (2.5.7)
+    nio4r (2.5.8)
     nokogiri (1.11.3)
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
@@ -384,7 +389,7 @@ GEM
     pry-rails (0.3.9)
       pry (>= 0.10.4)
     public_suffix (4.0.3)
-    puma (5.0.0)
+    puma (5.6.4)
       nio4r (~> 2.0)
     raabro (1.1.6)
     racc (1.5.2)
@@ -410,8 +415,6 @@ GEM
       bundler (>= 1.3.0)
       railties (= 5.2.5)
       sprockets-rails (>= 2.0.0)
-    rails-assets-semantic-ui-calendar (0.0.8)
-    rails-assets-svgxuse (1.2.6)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
@@ -664,7 +667,7 @@ DEPENDENCIES
   prawn-table
   premailer-rails
   pry-rails
-  puma (~> 5.0)
+  puma (~> 5.6)
   rack-attack
   rails (= 5.2.5)
   rails-assets-semantic-ui-calendar!