diff --git a/Gemfile.lock b/Gemfile.lock
index 6994dc3e..eba2b0bd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -55,7 +55,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rexml (3.3.7)
+    rexml (3.3.9)
     rouge (4.4.0)
     rubyzip (2.3.2)
     safe_yaml (1.0.5)