diff --git a/Gemfile.lock b/Gemfile.lock
index cfbd3eb..dc80d7a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -15,7 +15,8 @@ GEM
     rainbow (3.1.1)
     rake (13.0.6)
     regexp_parser (2.5.0)
-    rexml (3.2.5)
+    rexml (3.3.3)
+      strscan
     rubocop (1.35.0)
       json (~> 2.3)
       parallel (~> 1.10)
@@ -35,6 +36,7 @@ GEM
     standard (1.16.0)
       rubocop (= 1.35.0)
       rubocop-performance (= 1.14.3)
+    strscan (3.1.0)
     unicode-display_width (2.2.0)
 
 PLATFORMS