diff --git a/Gemfile.lock b/Gemfile.lock
index 7a72e72..6c64986 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -135,7 +135,7 @@ GEM
       ffi (~> 1.0)
     reverse_markdown (3.0.0)
       nokogiri
-    rexml (3.4.0)
+    rexml (3.4.2)
     rouge (3.30.0)
     rubyzip (2.4.1)
     safe_yaml (1.0.5)