diff --git a/Gemfile.lock b/Gemfile.lock
index cdf9e71e..89c0cd76 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -78,8 +78,7 @@ GEM
     rainbow (3.1.1)
     rake (13.1.0)
     regexp_parser (2.9.2)
-    rexml (3.3.1)
-      strscan
+    rexml (3.3.7)
     rspec (3.12.0)
       rspec-core (~> 3.12.0)
       rspec-expectations (~> 3.12.0)
@@ -134,7 +133,6 @@ GEM
       simplecov
     simplecov-lcov (0.8.0)
     simplecov_json_formatter (0.1.4)
-    strscan (3.1.0)
     thor (1.3.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)