diff --git a/lib/fhir_client/version.rb b/lib/fhir_client/version.rb
index 2d449f7a..bdbde1a4 100644
--- a/lib/fhir_client/version.rb
+++ b/lib/fhir_client/version.rb
@@ -1,5 +1,5 @@
 module FHIR
   class Client
-    VERSION = '5.0.3'.freeze
+    VERSION = '6.0.0'.freeze
   end
 end