diff --git a/Gemfile.lock b/Gemfile.lock
index d7a9cefe..1c62bbe7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -619,7 +619,7 @@ GEM
       railties (>= 5.2)
     reverse_markdown (2.1.1)
       nokogiri
-    rexml (3.3.7)
+    rexml (3.3.9)
     rinku (2.0.6)
     rouge (4.4.0)
     rspec (3.13.0)