diff --git a/Gemfile.lock b/Gemfile.lock
index 88abe643..9040cfda 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -283,7 +283,8 @@ GEM
       http-cookie (>= 1.0.2, < 2.0)
       mime-types (>= 1.16, < 4.0)
       netrc (~> 0.8)
-    rexml (3.2.6)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rspec (3.12.0)
       rspec-core (~> 3.12.0)
       rspec-expectations (~> 3.12.0)
@@ -364,6 +365,7 @@ GEM
       activesupport (>= 5.2)
       sprockets (>= 3.0.0)
     stringio (3.1.0)
+    strscan (3.1.0)
     sync (0.5.0)
     syslog_protocol (0.9.2)
     term-ansicolor (1.7.1)