diff --git a/Gemfile.lock b/Gemfile.lock
index 6eb2ea5a..a0489af8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -444,7 +444,7 @@ GEM
     ruby-vips (2.2.0)
       ffi (~> 1.12)
     ruby2_keywords (0.0.5)
-    rubytree (2.0.2)
+    rubytree (2.0.3)
       json (~> 2.0, > 2.3.1)
     rubyzip (2.3.2)
     sassc (2.4.0)