diff --git a/Gemfile.lock b/Gemfile.lock
index a103aa2ba49..3db592af6a1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -174,7 +174,7 @@ GEM
     logstash-logger (0.26.1)
       logstash-event (~> 1.2)
     logster (2.9.0)
-    loofah (2.5.0)
+    loofah (2.6.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lru_redux (1.1.0)