diff --git a/Gemfile.lock b/Gemfile.lock
index 8e2510b..626ee82 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -38,7 +38,7 @@ GEM
       rake (~> 13.0)
     public_suffix (6.0.1)
     rake (13.2.1)
-    rexml (3.3.7)
+    rexml (3.3.9)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)