diff --git a/Gemfile.lock b/Gemfile.lock
index 75b854b706838b..24cb1000699aa0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -110,7 +110,7 @@ GEM
     connection_pool (2.2.1)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
-    crass (1.0.2)
+    crass (1.0.6)
     debug_inspector (0.0.2)
     devise (4.2.1)
       bcrypt (~> 3.0)
@@ -233,7 +233,9 @@ 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_portile2 (2.1.0)
     minitest (5.10.1)
     multi_json (1.12.1)
@@ -243,7 +245,7 @@ GEM
     nio4r (2.0.0)
     nokogiri (1.7.1)
       mini_portile2 (~> 2.1.0)
-    nokogumbo (1.4.10)
+    nokogumbo (1.5.0)
       nokogiri
     oj (3.0.5)
     openssl (2.0.3)
@@ -386,10 +388,10 @@ GEM
     rufus-scheduler (3.4.0)
       et-orbi (~> 1.0)
     safe_yaml (1.0.4)
-    sanitize (4.4.0)
+    sanitize (4.6.6)
       crass (~> 1.0.2)
       nokogiri (>= 1.4.4)
-      nokogumbo (~> 1.4.1)
+      nokogumbo (~> 1.4)
     sidekiq (5.0.0)
       concurrent-ruby (~> 1.0)
       connection_pool (~> 2.2, >= 2.2.0)