diff --git a/Gemfile.lock b/Gemfile.lock
index 65744166..75aad1bf 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -102,9 +102,8 @@ GEM
     base64 (0.3.0)
     bigdecimal (4.1.2)
     bindex (0.8.1)
-    blazer (3.4.0)
+    blazer (3.5.1)
       activerecord (>= 7.2)
-      chartkick (>= 5)
       csv
       railties (>= 7.2)
       safely_block (>= 1)
@@ -127,7 +126,6 @@ GEM
     capybara-screenshot (1.0.27)
       capybara (>= 1.0, < 4)
       launchy
-    chartkick (5.2.1)
     childprocess (5.1.0)
       logger (~> 1.5)
     codeclimate-test-reporter (1.0.7)