diff --git a/Gemfile.lock b/Gemfile.lock
index 80be064..1227204 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -94,7 +94,7 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.11.0)
+    loofah (2.12.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -107,7 +107,7 @@ GEM
     msgpack (1.2.4)
     multi_json (1.13.1)
     nio4r (2.5.8)
-    nokogiri (1.12.3)
+    nokogiri (1.12.5)
       mini_portile2 (~> 2.6.1)
       racc (~> 1.4)
     orm_adapter (0.5.0)
@@ -140,7 +140,7 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.3.0)
+    rails-html-sanitizer (1.4.2)
       loofah (~> 2.3)
     railties (5.2.6)
       actionpack (= 5.2.6)
@@ -186,7 +186,7 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
-    simple_form (4.0.1)
+    simple_form (5.0.0)
       actionpack (>= 5.0)
       activemodel (>= 5.0)
     spring (2.0.2)