diff --git a/Gemfile.lock b/Gemfile.lock
index c3b4d77..9e31908 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -137,7 +137,8 @@ GEM
     rake (13.0.3)
     redis (4.2.5)
     regexp_parser (2.1.1)
-    rexml (3.2.5)
+    rexml (3.3.3)
+      strscan
     rubocop (1.15.0)
       parallel (~> 1.10)
       parser (>= 3.0.0.0)
@@ -169,6 +170,7 @@ GEM
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
     sqlite3 (1.4.2)
+    strscan (3.1.0)
     thor (1.1.0)
     tzinfo (2.0.4)
       concurrent-ruby (~> 1.0)