diff --git a/Gemfile.lock b/Gemfile.lock
index ee77d6fc..8366e268 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -118,18 +118,22 @@ GEM
     marcel (0.3.2)
       mimemagic (~> 0.3.2)
     method_source (0.9.0)
-    mimemagic (0.3.2)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.6.1)
     minitest (5.11.3)
     msgpack (1.2.4)
     multi_json (1.13.1)
     nio4r (2.3.1)
-    nokogiri (1.8.2)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     orm_adapter (0.5.0)
     public_suffix (3.0.2)
     puma (3.11.4)
+    racc (1.5.2)
     rack (2.0.5)
     rack-test (1.0.0)
       rack (>= 1.0, < 3)
@@ -192,9 +196,6 @@ GEM
     thor (0.20.0)
     thread_safe (0.3.6)
     tilt (2.0.8)
-    turbolinks (5.1.1)
-      turbolinks-source (~> 5.1)
-    turbolinks-source (5.1.0)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
     uglifier (4.1.10)
@@ -234,7 +235,6 @@ DEPENDENCIES
   sass-rails (~> 5.0)
   selenium-webdriver
   sqlite3
-  turbolinks (~> 5)
   tzinfo-data
   uglifier (>= 1.3.0)
   web-console (>= 3.3.0)