diff --git a/Gemfile.lock b/Gemfile.lock
index 45b2f64..b43edee 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -76,6 +76,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.0.5)
+    crass (1.0.5)
     devise (4.2.1)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
@@ -102,7 +103,8 @@ GEM
     listen (3.0.8)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
-    loofah (2.0.3)
+    loofah (2.3.1)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.5)
       mime-types (>= 1.16, < 4)
@@ -110,7 +112,7 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_portile2 (2.1.0)
+    mini_portile2 (2.4.0)
     minitest (5.10.1)
     multi_xml (0.6.0)
     mysql2 (0.4.6)
@@ -118,8 +120,8 @@ GEM
       net-ssh (>= 2.6.5)
     net-ssh (4.1.0)
     nio4r (2.0.0)
-    nokogiri (1.7.1)
-      mini_portile2 (~> 2.1.0)
+    nokogiri (1.10.5)
+      mini_portile2 (~> 2.4.0)
     orm_adapter (0.5.0)
     puma (3.8.2)
     rack (2.0.1)