diff --git a/examples/rails/Gemfile.lock b/examples/rails/Gemfile.lock
index c009ef4e..bc2eed18 100644
--- a/examples/rails/Gemfile.lock
+++ b/examples/rails/Gemfile.lock
@@ -202,7 +202,8 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     regexp_parser (2.2.0)
-    rexml (3.2.5)
+    rexml (3.3.6)
+      strscan
     rspec-core (3.10.1)
       rspec-support (~> 3.10.0)
     rspec-expectations (3.10.2)