diff --git a/Gemfile.lock b/Gemfile.lock
index 17eabd1..be2688e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -74,7 +74,8 @@ GEM
     rainbow (3.1.1)
     rake (13.0.6)
     regexp_parser (2.9.0)
-    rexml (3.2.6)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rspec (3.11.0)
       rspec-core (~> 3.11.0)
       rspec-expectations (~> 3.11.0)
@@ -105,6 +106,7 @@ GEM
       rubocop (~> 1.51)
     ruby-progressbar (1.13.0)
     smart_properties (1.17.0)
+    strscan (3.1.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.5.0)