diff --git a/Gemfile.lock b/Gemfile.lock
index 6ed7a8e..f177dc2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -177,7 +177,7 @@ GEM
     mime-types (3.3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.1009)
-    mini_magick (4.2.7)
+    mini_magick (4.9.4)
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.14.0)