diff --git a/Gemfile.lock b/Gemfile.lock
index be8a0e6..c757594 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,7 +7,8 @@ GEM
       ast (~> 2.4.1)
     rainbow (3.0.0)
     regexp_parser (2.0.3)
-    rexml (3.2.5)
+    rexml (3.3.3)
+      strscan
     rubocop (1.9.1)
       parallel (~> 1.10)
       parser (>= 3.0.0.0)
@@ -26,6 +27,7 @@ GEM
       rubocop (~> 1.0)
       rubocop-ast (>= 1.1.0)
     ruby-progressbar (1.11.0)
+    strscan (3.1.0)
     unicode-display_width (2.0.0)
 
 PLATFORMS