diff --git a/CHANGELOG.md b/CHANGELOG.md
index a7d15e8..342e144 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 ## Unreleased
 
+* Add Procore-Sdk-Language header to all requests
+
+  PR #45 - https://github.com/procore/ruby-sdk/pull/45
+
+  *Benjamin Ross*
+
 * Remove Redis.exists warning
 
   PR #46 - https://github.com/procore/ruby-sdk/pull/46
diff --git a/lib/procore/requestable.rb b/lib/procore/requestable.rb
index 4babc7e..bbcd586 100644
--- a/lib/procore/requestable.rb
+++ b/lib/procore/requestable.rb
@@ -343,7 +343,8 @@ def headers(options = {})
         "Accepts" => "application/json",
         "Authorization" => "Bearer #{access_token}",
         "Content-Type" => "application/json",
-        "Procore-Sdk-Version" => "ruby-#{Procore::VERSION}",
+        "Procore-Sdk-Version" => Procore::VERSION,
+        "Procore-Sdk-Language" => "ruby",
         "User-Agent" => Procore.configuration.user_agent,
       }.tap do |headers|
         if options[:idempotency_token]
diff --git a/test/procore/requestable_test.rb b/test/procore/requestable_test.rb
index 6db608a..ea2457d 100644
--- a/test/procore/requestable_test.rb
+++ b/test/procore/requestable_test.rb
@@ -26,7 +26,8 @@ def headers
       "Accepts" => "application/json",
       "Authorization" => "Bearer token",
       "Content-Type" => "application/json",
-      "Procore-Sdk-Version" => "ruby-#{Procore::VERSION}",
+      "Procore-Sdk-Version" => Procore::VERSION,
+      "Procore-Sdk-Language" => "ruby",
     }
   end