diff --git a/Gemfile.lock b/Gemfile.lock
index 8c8d0fd..f145fca 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,8 +17,7 @@ GEM
     rainbow (3.1.1)
     rake (13.0.6)
     regexp_parser (2.6.0)
-    rexml (3.2.8)
-      strscan (>= 3.0.9)
+    rexml (3.3.9)
     rspec (3.11.0)
       rspec-core (~> 3.11.0)
       rspec-expectations (~> 3.11.0)
@@ -57,7 +56,6 @@ GEM
     rubocop-rspec (2.13.2)
       rubocop (~> 1.33)
     ruby-progressbar (1.11.0)
-    strscan (3.1.0)
     unicode-display_width (2.3.0)
 
 PLATFORMS