diff --git a/CHANGELOG b/CHANGELOG
index 2a7fb0c..763eedf 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,6 @@
+v1.5.2
+ - Add dependency of addressable
+
 v1.5.1
  - Add support for video thumbnails and 'media' interface to unify shared parts of videos/virtual tours
 
diff --git a/VERSION b/VERSION
index 26ca594..4cda8f1 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.5.1
+1.5.2
diff --git a/lib/spark_api.rb b/lib/spark_api.rb
index 226b50d..0a320db 100644
--- a/lib/spark_api.rb
+++ b/lib/spark_api.rb
@@ -1,6 +1,7 @@
 require 'rubygems'
 require 'logger'
 require 'multi_json'
+require 'addressable'
 
 require 'spark_api/version'
 require 'spark_api/errors'