diff --git a/Gemfile b/Gemfile
index 5b7ecd62..9461ad1e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,3 +5,5 @@ source "https://rubygems.org"
 git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 
 gemspec
+
+gem "securerandom", "~> 0.3"
diff --git a/Gemfile.lock b/Gemfile.lock
index 6e3da3bf..eb9ab323 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -254,6 +254,7 @@ DEPENDENCIES
   mocha (~> 1.13)
   rails (>= 5.2)
   rake (~> 13.0)
+  securerandom (~> 0.3)
   standard (~> 1.24)
   stimulus_reflex!