diff --git a/Gemfile.lock b/Gemfile.lock
index 04689fc..1d7eb68 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -137,9 +137,11 @@ 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)
     mini_racer (0.2.4)
       libv8 (>= 6.3)
     minitest (5.11.3)
@@ -148,8 +150,9 @@ GEM
     multi_xml (0.6.0)
     multipart-post (2.0.0)
     nio4r (2.3.1)
-    nokogiri (1.10.0)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.11.4)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     oauth (0.5.4)
     oauth2 (1.4.1)
       faraday (>= 0.8, < 0.16.0)
@@ -177,6 +180,7 @@ GEM
     popper_js (1.14.5)
     public_suffix (3.0.3)
     puma (3.12.0)
+    racc (1.5.2)
     rack (2.0.6)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)