diff --git a/finicity-ruby.gemspec b/finicity-ruby.gemspec
index 996e4bd..7479f69 100644
--- a/finicity-ruby.gemspec
+++ b/finicity-ruby.gemspec
@@ -22,7 +22,7 @@ Gem::Specification.new do |spec|
   spec.required_ruby_version     = ">= 2.3.0"
   spec.required_rubygems_version = ">= 2.0.0"
 
-  spec.add_runtime_dependency "hashie", "~> 3.4.4"
+  spec.add_runtime_dependency "hashie", "~> 3.6.0"
   spec.add_runtime_dependency "httparty", "~> 0.18.0"
   spec.add_runtime_dependency "redis", "~> 3.3.1"
   spec.add_runtime_dependency "activesupport"