diff --git a/Gemfile.lock b/Gemfile.lock
index 30c837be..acecfec1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -109,7 +109,7 @@ GEM
     coffee-script-source (1.12.2)
     concurrent-ruby (1.1.10)
     connection_pool (2.3.0)
-    crass (1.0.6)
+    crass (1.0.7)
     date (3.3.4)
     docile (1.1.5)
     erubi (1.9.0)
@@ -144,9 +144,9 @@ GEM
     listen (3.0.8)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
-    loofah (2.19.1)
+    loofah (2.25.2)
       crass (~> 1.0.2)
-      nokogiri (>= 1.5.9)
+      nokogiri (>= 1.12.0)
     lumberjack (1.2.8)
     mail (2.8.1)
       mini_mime (>= 0.1.1)