diff --git a/Gemfile b/Gemfile
index 31ce5d6c..f25edea2 100644
--- a/Gemfile
+++ b/Gemfile
@@ -22,7 +22,7 @@ gem 'bcrypt', '~> 3.1.16'
 gem 'chartjs-ror', :git => 'git://github.com/ZeiP/chartjs-ror.git'
 gem 'htmlentities'
 gem 'paperclip'
-gem 'puma', '~> 5.2'
+gem 'puma', '~> 5.3'
 gem 'rails_autolink'
 gem 'RedCloth'
 gem 'sanitize', '~> 5.2'
diff --git a/Gemfile.lock b/Gemfile.lock
index 103791c3..23f4aebc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -166,7 +166,7 @@ GEM
     minitest-stub-const (0.6)
     mocha (1.12.0)
     mysql2 (0.5.3)
-    nio4r (2.5.5)
+    nio4r (2.5.7)
     nokogiri (1.11.2)
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
@@ -182,7 +182,7 @@ GEM
     parser (3.0.1.1)
       ast (~> 2.4.1)
     pg (1.2.3)
-    puma (5.2.2)
+    puma (5.3.2)
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)
@@ -349,7 +349,7 @@ DEPENDENCIES
   mysql2 (~> 0.5.3)
   paperclip
   pg (~> 1.2.3)
-  puma (~> 5.2)
+  puma (~> 5.3)
   rack-mini-profiler
   rails (~> 6.0.3)
   rails-controller-testing