diff --git a/Gemfile.lock b/Gemfile.lock
index d4b18f717..ed60a1dd6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -112,7 +112,7 @@ GEM
       image_processing (~> 1.1)
       mimemagic (>= 0.3.0)
       mini_mime (>= 0.1.3)
-    chartkick (3.3.2)
+    chartkick (3.4.0)
     childprocess (3.0.0)
     codeclimate-test-reporter (1.0.9)
       simplecov (<= 0.13)