diff --git a/Gemfile.lock b/Gemfile.lock
index 31e4435d0..da78cf039 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -64,7 +64,7 @@ GEM
       activesupport (>= 3.2.0)
     childprocess (0.3.9)
       ffi (~> 1.0, >= 1.0.11)
-    chunky_png (1.2.6)
+    chunky_png (1.2.7)
     client_side_validations (3.2.2)
     coderay (1.0.9)
     coffee-rails (3.2.2)