diff --git a/Gemfile b/Gemfile
index bc36e64a0..aef6879c4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -53,7 +53,7 @@ gem 'haml-rails', '~> 2.0'
 gem 'simple_form'
 gem 'ajax-datatables-rails', '~> 1.0'
 gem 'roadie-rails'
-gem 'chartkick', '~> 3.3'
+gem 'chartkick', '~> 3.4'
 gem 'groupdate'
 gem 'font-awesome-rails', '~> 4.0' # needed for icon helpers
 gem 'mustache', '~> 1.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 86927fb9d..f3066ac8a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -100,7 +100,7 @@ GEM
       rack-test (>= 0.6.3)
       regexp_parser (~> 1.5)
       xpath (~> 3.2)
-    chartkick (3.3.1)
+    chartkick (3.4.0)
     childprocess (3.0.0)
     chromedriver-helper (2.1.1)
       archive-zip (~> 0.10)
@@ -448,7 +448,7 @@ DEPENDENCIES
   bootstrap (~> 4.3.1)
   byebug
   capybara (>= 2.15)
-  chartkick (~> 3.3)
+  chartkick (~> 3.4)
   chromedriver-helper
   codeclimate-test-reporter (~> 0.6.0)
   devise (~> 4.7)
diff --git a/vendor/cache/chartkick-3.3.1.gem b/vendor/cache/chartkick-3.3.1.gem
deleted file mode 100644
index 40aba6b28..000000000
Binary files a/vendor/cache/chartkick-3.3.1.gem and /dev/null differ
diff --git a/vendor/cache/chartkick-3.4.0.gem b/vendor/cache/chartkick-3.4.0.gem
new file mode 100644
index 000000000..e359fd01b
Binary files /dev/null and b/vendor/cache/chartkick-3.4.0.gem differ