diff --git a/Gemfile.lock b/Gemfile.lock
index 57ede05..3adc5ca 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -59,7 +59,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.1.4)
-    crass (1.0.4)
+    crass (1.0.6)
     erubi (1.8.0)
     execjs (2.7.0)
     ffi (1.9.25)
@@ -75,7 +75,7 @@ GEM
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
     json (1.8.6)
-    loofah (2.2.3)
+    loofah (2.4.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -89,7 +89,7 @@ GEM
     minitest (5.11.3)
     multi_json (1.13.1)
     nio4r (2.3.1)
-    nokogiri (1.10.1)
+    nokogiri (1.10.8)
       mini_portile2 (~> 2.4.0)
     pg (0.21.0)
     rack (2.0.6)