diff --git a/rb/Gemfile.lock b/rb/Gemfile.lock
index b3ff2ee63694a..fc7824c505e68 100644
--- a/rb/Gemfile.lock
+++ b/rb/Gemfile.lock
@@ -6,6 +6,7 @@ PATH
     selenium-webdriver (4.36.0.nightly)
       base64 (~> 0.2)
       logger (~> 1.4)
+      prism (~> 1.0, < 1.5)
       rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2, < 4.0)
       websocket (~> 1.0)
diff --git a/rb/selenium-webdriver.gemspec b/rb/selenium-webdriver.gemspec
index 15783435bb73c..8f5a45274f6c7 100644
--- a/rb/selenium-webdriver.gemspec
+++ b/rb/selenium-webdriver.gemspec
@@ -51,6 +51,7 @@ Gem::Specification.new do |s|
 
   s.add_dependency 'base64', ['~> 0.2']
   s.add_dependency 'logger', ['~> 1.4']
+  s.add_dependency 'prism', ['~> 1.0', '< 1.5']
   s.add_dependency 'rexml', ['~> 3.2', '>= 3.2.5']
   s.add_dependency 'rubyzip', ['>= 1.2.2', '< 4.0']
   s.add_dependency 'websocket', ['~> 1.0']