diff --git a/apps/example/Gemfile.lock b/apps/example/Gemfile.lock
index d4d946a..b1372f6 100644
--- a/apps/example/Gemfile.lock
+++ b/apps/example/Gemfile.lock
@@ -87,7 +87,7 @@ GEM
     netrc (0.11.0)
     nkf (0.2.0)
     public_suffix (4.0.7)
-    rexml (3.4.0)
+    rexml (3.4.2)
     ruby-macho (2.5.1)
     securerandom (0.4.1)
     typhoeus (1.4.1)