diff --git a/Gemfile.lock b/Gemfile.lock
index c3d23c5..26da5a0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -65,7 +65,7 @@ GEM
     datetime_picker_rails (0.0.7)
       momentjs-rails (>= 2.8.1)
     diff-lcs (1.3)
-    diffy (3.3.0)
+    diffy (3.4.2)
     erubi (1.8.0)
     erubis (2.7.0)
     execjs (2.7.0)
@@ -122,7 +122,9 @@ GEM
     meta-tags (2.11.1)
       actionpack (>= 3.2.0, < 6.1)
     method_source (0.9.2)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.1)
     mini_portile2 (2.4.0)
     minitest (5.11.3)