diff --git a/lib/shipping_easy/http/faraday_adapter.rb b/lib/shipping_easy/http/faraday_adapter.rb
index 1b06e8b..0a4e075 100644
--- a/lib/shipping_easy/http/faraday_adapter.rb
+++ b/lib/shipping_easy/http/faraday_adapter.rb
@@ -19,6 +19,7 @@ def post
     connection.post do |req|
       req.url uri, params
       req.body = request.body
+      req.headers['Content-Type'] = 'application/json' if request.body
     end
   end
 
@@ -36,7 +37,7 @@ def connection
       faraday.adapter Faraday.default_adapter
     end
   end
-  
+
   class CustomUserAgent < Faraday::Middleware
     def initialize(app, agent_string)
       super(app)
diff --git a/lib/shipping_easy/version.rb b/lib/shipping_easy/version.rb
index d9bb6f0..5da6112 100644
--- a/lib/shipping_easy/version.rb
+++ b/lib/shipping_easy/version.rb
@@ -1,3 +1,3 @@
 module ShippingEasy
-  VERSION = "0.7.0"
+  VERSION = "0.7.1"
 end