diff --git a/Gemfile b/Gemfile
index 2263071..abb04f0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -11,7 +11,7 @@ gem 'pg', '~> 0.21.0'
 gem 'rack-timeout', '~> 0.4.2'
 gem 'rails', '~> 5.1.7'
 gem 'sass-rails', '~> 5.0.6'
-gem 'simple_form', '~> 3.5.0'
+gem 'simple_form', '~> 5.0.0'
 gem 'uglifier', '~> 3.2.0'
 gem 'devise', '~> 4.7.1'
 gem 'rolify', '~> 5.1.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 36e28ef..3560db5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -238,9 +238,9 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
-    simple_form (3.5.0)
-      actionpack (> 4, < 5.2)
-      activemodel (> 4, < 5.2)
+    simple_form (5.0.0)
+      actionpack (>= 5.0)
+      activemodel (>= 5.0)
     simplecov (0.14.1)
       docile (~> 1.1.0)
       json (>= 1.8, < 3)
@@ -322,7 +322,7 @@ DEPENDENCIES
   rails-controller-testing (~> 1.0.2)
   rolify (~> 5.1.0)
   sass-rails (~> 5.0.6)
-  simple_form (~> 3.5.0)
+  simple_form (~> 5.0.0)
   simplecov (~> 0.14.1)
   simplify_rb (~> 0.3.0)
   spring (~> 2.0.2)