diff --git a/Gemfile.lock b/Gemfile.lock
index 8fc0de8..f7fce92 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -61,7 +61,7 @@ GEM
     coffee-script-source (1.12.2)
     commonjs (0.2.7)
     concurrent-ruby (1.0.5)
-    crass (1.0.3)
+    crass (1.0.5)
     database_cleaner (1.6.2)
     devise (4.4.0)
       bcrypt (~> 3.0)
@@ -101,7 +101,7 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.1.1)
+    loofah (2.4.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.0)
@@ -112,18 +112,18 @@ GEM
     mime-types-data (3.2016.0521)
     mini_magick (4.8.0)
     mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.4.0)
     minitest (5.11.1)
     multi_json (1.13.1)
     mustermann (1.0.1)
     newrelic_rpm (4.7.1.340)
     nio4r (2.2.0)
-    nokogiri (1.8.1)
-      mini_portile2 (~> 2.3.0)
-    nokogiri (1.8.1-x64-mingw32)
-      mini_portile2 (~> 2.3.0)
-    nokogiri (1.8.1-x86-mingw32)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.10.5)
+      mini_portile2 (~> 2.4.0)
+    nokogiri (1.10.5-x64-mingw32)
+      mini_portile2 (~> 2.4.0)
+    nokogiri (1.10.5-x86-mingw32)
+      mini_portile2 (~> 2.4.0)
     orm_adapter (0.5.0)
     pdf-core (0.7.0)
     pg (0.19.0)
@@ -155,8 +155,8 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.0.3)
-      loofah (~> 2.0)
+    rails-html-sanitizer (1.3.0)
+      loofah (~> 2.3)
     rails_12factor (0.0.3)
       rails_serve_static_assets
       rails_stdout_logging