diff --git a/Gemfile.lock b/Gemfile.lock
index a8f54d9..9c21560 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -83,18 +83,22 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mimemagic (0.3.2)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (0.1.4)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     minitest (5.10.3)
-    nokogiri (1.8.1)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     paperclip (5.1.0)
       activemodel (>= 4.2.0)
       activesupport (>= 4.2.0)
       cocaine (~> 0.5.5)
       mime-types
       mimemagic (~> 0.3.0)
+    racc (1.6.0)
     rack (1.6.8)
     rack-test (0.6.3)
       rack (>= 1.0)