diff --git a/Gemfile.lock b/Gemfile.lock
index 93ee69e..70a1484 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -48,7 +48,7 @@ GEM
       prawn (~> 2.2)
     public_suffix (7.0.5)
     rake (13.0.6)
-    rexml (3.3.9)
+    rexml (3.4.2)
     ruby-rc4 (0.1.5)
     safe_yaml (1.0.5)
     treetop (1.6.11)