diff --git a/Gemfile.lock b/Gemfile.lock
index eed1b36..1b0ecb6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -85,7 +85,7 @@ GEM
     nap (1.1.0)
     netrc (0.11.0)
     public_suffix (4.0.7)
-    rexml (3.3.9)
+    rexml (3.4.2)
     ruby-macho (2.5.1)
     securerandom (0.4.1)
     typhoeus (1.5.0)