diff --git a/Gemfile.lock b/Gemfile.lock
index 080ce32..732095e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,7 +17,7 @@ GEM
       rexml
     pdfkit (0.8.7.3)
     rake (13.1.0)
-    rexml (3.2.6)
+    rexml (3.4.2)
     rspec (3.12.0)
       rspec-core (~> 3.12.0)
       rspec-expectations (~> 3.12.0)