diff --git a/firecrawl.gemspec b/firecrawl.gemspec
index 73c9821..b7d6317 100644
--- a/firecrawl.gemspec
+++ b/firecrawl.gemspec
@@ -28,6 +28,7 @@ Gem::Specification.new do | spec |
   spec.files            = Dir[ "lib/**/*.rb", "LICENSE", "README.md", "firecrawl.gemspec" ]
   spec.require_paths    = [ "lib" ]
 
+  spec.add_runtime_dependency 'base64'
   spec.add_runtime_dependency 'faraday', '~> 2.7'
   spec.add_runtime_dependency 'dynamicschema', '~> 1.0.0.beta04'