diff --git a/Gemfile.lock b/Gemfile.lock
index e47b5f9..2575793 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -173,7 +173,8 @@ GEM
     rainbow (3.1.1)
     rake (13.1.0)
     regexp_parser (2.8.3)
-    rexml (3.2.6)
+    rexml (3.3.3)
+      strscan
     rspec-core (3.9.3)
       rspec-support (~> 3.9.3)
     rspec-expectations (3.9.4)
@@ -228,6 +229,7 @@ GEM
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
+    strscan (3.1.0)
     thor (1.3.0)
     timeout (0.4.1)
     tzinfo (2.0.6)