diff --git a/Gemfile.lock b/Gemfile.lock
index 355763c..d772d7d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -21,7 +21,8 @@ GEM
     rainbow (3.1.1)
     rake (13.0.6)
     regexp_parser (2.8.1)
-    rexml (3.2.5)
+    rexml (3.3.0)
+      strscan
     rubocop (1.52.1)
       json (~> 2.3)
       parallel (~> 1.10)
@@ -50,6 +51,7 @@ GEM
     standard-performance (1.1.2)
       lint_roller (~> 1.1)
       rubocop-performance (~> 1.18.0)
+    strscan (3.1.0)
     unicode-display_width (2.4.2)
     waitutil (0.2.1)
     websocket-driver (0.7.6)