diff --git a/Gemfile.lock b/Gemfile.lock
index 568f170..a443f88 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -14,7 +14,8 @@ GEM
     rainbow (3.1.1)
     rake (13.1.0)
     regexp_parser (2.9.0)
-    rexml (3.2.6)
+    rexml (3.3.3)
+      strscan
     rubocop (1.60.2)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
@@ -38,6 +39,7 @@ GEM
       simplecov (~> 0.19)
     simplecov-html (0.12.3)
     simplecov_json_formatter (0.1.4)
+    strscan (3.1.0)
     test-unit (3.4.0)
       power_assert
     unicode-display_width (2.5.0)