diff --git a/ruby/Gemfile.lock b/ruby/Gemfile.lock
index 5d11657d..dca79fa1 100644
--- a/ruby/Gemfile.lock
+++ b/ruby/Gemfile.lock
@@ -52,7 +52,7 @@ GEM
     redis-client (0.21.1)
       connection_pool
     regexp_parser (2.9.0)
-    rexml (3.2.6)
+    rexml (3.3.8)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)