diff --git a/Gemfile.lock b/Gemfile.lock
index 04c8e0a..a962308 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -189,7 +189,7 @@ GEM
       io-console (~> 0.5)
     reverse_markdown (2.1.1)
       nokogiri
-    rexml (3.3.0)
+    rexml (3.3.6)
       strscan
     rspec-core (3.12.2)
       rspec-support (~> 3.12.0)