diff --git a/ansible_tower_client.gemspec b/ansible_tower_client.gemspec
index 4b562f5..ddac3ec 100644
--- a/ansible_tower_client.gemspec
+++ b/ansible_tower_client.gemspec
@@ -20,7 +20,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_runtime_dependency "activesupport"
-  spec.add_runtime_dependency "faraday"
+  spec.add_runtime_dependency "faraday",              "~> 0.13"
   spec.add_runtime_dependency "faraday_middleware"
   spec.add_runtime_dependency "more_core_extensions", "~> 3.0"