diff --git a/CHANGELOG.md b/CHANGELOG.md
index 62512f4e..47a236a0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.6.6
+
+  * SECURITY: normalize url for audio/video oneboxes
+
 ## 1.5.64
 
   * Escape HTML entities in text when oneboxing Amazon URLs.
diff --git a/lib/onebox/version.rb b/lib/onebox/version.rb
index b63ff69d..1315a5ea 100644
--- a/lib/onebox/version.rb
+++ b/lib/onebox/version.rb
@@ -1,3 +1,3 @@
 module Onebox
-  VERSION = "1.6.5"
+  VERSION = "1.6.6"
 end