diff --git a/Gemfile.lock b/Gemfile.lock
index f0875e1..a4c1a45 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -45,7 +45,7 @@ GEM
     arel (6.0.4)
     builder (3.2.3)
     concurrent-ruby (1.1.4)
-    crass (1.0.4)
+    crass (1.0.5)
     deface (1.3.2)
       nokogiri (>= 1.6)
       polyglot
@@ -56,7 +56,7 @@ GEM
       activesupport (>= 4.2.0)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
-    loofah (2.2.3)
+    loofah (2.4.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -64,7 +64,7 @@ GEM
     mini_mime (1.0.1)
     mini_portile2 (2.4.0)
     minitest (5.11.3)
-    nokogiri (1.10.1)
+    nokogiri (1.10.5)
       mini_portile2 (~> 2.4.0)
     polyglot (0.3.5)
     rack (1.6.11)