diff --git a/Gemfile.lock b/Gemfile.lock
index 2e54f63..ef2d805 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -44,8 +44,7 @@ GEM
     rainbow (3.1.1)
     rake (13.2.1)
     regexp_parser (2.9.2)
-    rexml (3.3.6)
-      strscan
+    rexml (3.3.7)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)
@@ -89,7 +88,6 @@ GEM
       simplecov_json_formatter (~> 0.1)
     simplecov-html (0.12.3)
     simplecov_json_formatter (0.1.4)
-    strscan (3.1.0)
     unicode-display_width (2.6.0)
     uri (0.13.0)
     yard (0.9.37)