diff --git a/lib/riiif/version.rb b/lib/riiif/version.rb
index f85c08f..b68d3b4 100644
--- a/lib/riiif/version.rb
+++ b/lib/riiif/version.rb
@@ -1,3 +1,3 @@
 module Riiif
-  VERSION = '0.4.1'.freeze
+  VERSION = '1.0.0'.freeze
 end