diff --git a/Gemfile.lock b/Gemfile.lock
index cee5b83..50bae86 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -47,7 +47,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.0.5)
-    crass (1.0.5)
+    crass (1.0.6)
     cssmin (1.0.3)
     cucumber (3.1.2)
       builder (>= 2.1.2)
@@ -113,7 +113,7 @@ GEM
     json (2.1.0)
     kramdown (1.9.0)
     libv8 (3.16.14.19)
-    loofah (2.3.1)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.0)
@@ -122,20 +122,22 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2018.0812)
     mini_mime (1.0.1)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
     multi_json (1.13.1)
     multi_test (0.1.2)
     mustache (0.99.8)
     mysql2 (0.5.2)
     mysql2 (0.5.2-x86-mingw32)
-    nokogiri (1.10.8)
-      mini_portile2 (~> 2.4.0)
-    nokogiri (1.10.8-x86-mingw32)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.10)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
+    nokogiri (1.13.10-x86-mingw32)
+      racc (~> 1.4)
     pg (1.1.3)
     pg (1.1.3-x86-mingw32)
     posix-spawn (0.3.13)
+    racc (1.6.1)
     rack (1.6.12)
     rack-protection (1.5.5)
       rack