diff --git a/Gemfile.lock b/Gemfile.lock
index 1eb05f3c..effa005b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -279,7 +279,7 @@ GEM
     mina (0.3.8)
       open4 (~> 1.3.4)
       rake
-    mini_magick (4.5.1)
+    mini_magick (4.8.0)
     mini_portile2 (2.3.0)
     minitest (5.11.3)
     momentjs-rails (2.8.1)