diff --git a/example/Gemfile.lock b/example/Gemfile.lock
index 7cb1fbc..d7019a9 100644
--- a/example/Gemfile.lock
+++ b/example/Gemfile.lock
@@ -75,10 +75,8 @@ GEM
     netrc (0.11.0)
     nkf (0.2.0)
     public_suffix (4.0.7)
-    rexml (3.3.6)
-      strscan
+    rexml (3.3.9)
     ruby-macho (2.5.1)
-    strscan (3.1.0)
     typhoeus (1.4.1)
       ethon (>= 0.9.0)
     tzinfo (2.0.6)