diff --git a/Gemfile.lock b/Gemfile.lock
index ede09a7..ee7c296 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -10,7 +10,7 @@ GEM
     power_assert (1.1.6)
     public_suffix (4.0.6)
     rake (13.0.1)
-    rexml (3.3.3)
+    rexml (3.3.6)
       strscan
     safe_yaml (1.0.5)
     strscan (3.1.0)