diff --git a/Gemfile.lock b/Gemfile.lock
index 4133064..5f2c1f8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -34,7 +34,8 @@ GEM
       http-cookie (>= 1.0.2, < 2.0)
       mime-types (>= 1.16, < 4.0)
       netrc (~> 0.8)
-    rexml (3.2.5)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rspec (3.9.0)
       rspec-core (~> 3.9.0)
       rspec-expectations (~> 3.9.0)
@@ -64,6 +65,7 @@ GEM
       rubocop (~> 1.33)
     ruby-progressbar (1.11.0)
     safe_yaml (1.0.5)
+    strscan (3.1.0)
     timecop (0.9.1)
     unf (0.1.4)
       unf_ext