diff --git a/Gemfile.lock b/Gemfile.lock
index 939c8c2..38a437f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -48,8 +48,7 @@ GEM
     rainbow (3.1.1)
     rake (13.0.6)
     regexp_parser (2.5.0)
-    rexml (3.3.2)
-      strscan
+    rexml (3.3.9)
     rspec (3.11.0)
       rspec-core (~> 3.11.0)
       rspec-expectations (~> 3.11.0)
@@ -82,7 +81,6 @@ GEM
     standard (1.12.1)
       rubocop (= 1.29.1)
       rubocop-performance (= 1.13.3)
-    strscan (3.1.0)
     unicode-display_width (2.2.0)
 
 PLATFORMS