diff --git a/Gemfile.lock b/Gemfile.lock
index 66f2fd0..ebccbc0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -264,7 +264,7 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2018.0812)
     mimemagic (0.3.3)
-    mini_magick (4.9.2)
+    mini_magick (4.9.4)
     mini_mime (1.0.1)
     mini_portile2 (2.4.0)
     minitest (5.11.3)