diff --git a/Gemfile.lock b/Gemfile.lock
index 5e84b84..3349505 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -62,7 +62,7 @@ GEM
       concurrent-ruby (~> 1.0)
     json (2.3.1)
     kgio (2.11.3)
-    loofah (2.8.0)
+    loofah (2.18.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -72,15 +72,16 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2020.1104)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.6.1)
     minitest (5.14.2)
     mono_logger (1.1.0)
     multi_json (1.15.0)
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
     nio4r (2.5.4)
-    nokogiri (1.10.10)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     obf (0.9.8.36)
       CFPropertyList
       json
@@ -94,6 +95,7 @@ GEM
     prawn (2.3.0)
       pdf-core (~> 0.8.1)
       ttfunk (~> 1.6)
+    racc (1.6.0)
     rack (2.2.3)
     rack-protection (2.1.0)
       rack
@@ -114,7 +116,7 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.3.0)
+    rails-html-sanitizer (1.4.3)
       loofah (~> 2.3)
     rails_12factor (0.0.3)
       rails_serve_static_assets