diff --git a/Gemfile.lock b/Gemfile.lock
index 9fa99d0..bd83e5b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -107,7 +107,7 @@ GEM
     em-websocket (0.5.1)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
-    erubi (1.7.1)
+    erubi (1.8.0)
     eventmachine (1.2.7)
     execjs (2.7.0)
     ffi (1.9.25)