diff --git a/Gemfile.lock b/Gemfile.lock
index 72a382905..6e44777d2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -244,7 +244,7 @@ GEM
       trailblazer-option (>= 0.1.1, < 0.2.0)
       uber (< 0.2.0)
     retriable (3.1.2)
-    rexml (3.3.8)
+    rexml (3.3.9)
     rouge (2.0.7)
     ruby-macho (2.5.1)
     ruby2_keywords (0.0.5)