diff --git a/Gemfile.lock b/Gemfile.lock
index 5610a3c..64c90da 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -21,7 +21,7 @@ GEM
     power_assert (1.1.4)
     public_suffix (4.0.6)
     rake (13.0.3)
-    rexml (3.2.5)
+    rexml (3.4.2)
     rr (1.2.1)
     safe_yaml (1.0.5)
     test-unit (3.3.3)