diff --git a/Gemfile.lock b/Gemfile.lock
index 282beba..ab5144c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -155,9 +155,11 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     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)
+    mini_portile2 (2.5.1)
     minitest (5.11.3)
     minitest-capybara (0.9.0)
       capybara
@@ -177,8 +179,9 @@ GEM
     multi_json (1.13.1)
     mustermann (1.0.3)
     nio4r (2.3.1)
-    nokogiri (1.10.1)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.11.5)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     orm_adapter (0.5.0)
     parallel (1.13.0)
     parser (2.6.0.0)
@@ -193,6 +196,7 @@ GEM
       pry (>= 0.10.4)
     public_suffix (3.0.3)
     puma (3.12.0)
+    racc (1.5.2)
     rack (2.0.6)
     rack-protection (2.0.5)
       rack