diff --git a/Gemfile.lock b/Gemfile.lock
index aa09e80..301a9cc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -18,7 +18,7 @@ GEM
       rack
     rainbow (3.0.0)
     regexp_parser (2.1.1)
-    rexml (3.3.3)
+    rexml (3.3.6)
       strscan
     rspec (3.10.0)
       rspec-core (~> 3.10.0)