diff --git a/Gemfile.lock b/Gemfile.lock
index 197ea14..e9193e6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -23,8 +23,7 @@ GEM
     multi_json (1.15.0)
     public_suffix (6.0.1)
     rake (13.2.1)
-    rexml (3.3.6)
-      strscan
+    rexml (3.3.9)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)
@@ -48,7 +47,6 @@ GEM
       simplecov_json_formatter (~> 0.1)
     simplecov-html (0.12.3)
     simplecov_json_formatter (0.1.4)
-    strscan (3.1.0)
     vcr (6.2.0)
     webmock (3.23.1)
       addressable (>= 2.8.0)