diff --git a/Gemfile.lock b/Gemfile.lock
index 9f14316..6a204e5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -243,14 +243,16 @@ GEM
     mime-types (3.2.2)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.0331)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_backtrace (0.1.3)
       minitest (> 1.2.0)
       rails (>= 2.3.3)
     mini_magick (3.8.0)
       subexec (~> 0.2.1)
     mini_mime (1.0.1)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.5.1)
     minitest (5.11.3)
     minitest-reporters (1.0.5)
       ansi
@@ -262,8 +264,9 @@ GEM
     multi_json (1.13.1)
     nenv (0.3.0)
     nio4r (2.3.1)
-    nokogiri (1.10.3)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.11.4)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     notiffany (0.1.1)
       nenv (~> 0.1)
       shellany (~> 0.0)
@@ -278,6 +281,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     puma (3.12.1)
+    racc (1.5.2)
     rack (2.0.7)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)