diff --git a/Gemfile.lock b/Gemfile.lock
index cc6cbb21..df174e0d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -234,7 +234,8 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     regexp_parser (2.2.0)
-    rexml (3.2.5)
+    rexml (3.3.3)
+      strscan
     rspec (3.11.0)
       rspec-core (~> 3.11.0)
       rspec-expectations (~> 3.11.0)
@@ -280,6 +281,7 @@ GEM
       unicode-display_width (>= 1.5, < 3.0)
       unicode_utils (~> 1.4)
     strings-ansi (0.2.0)
+    strscan (3.1.0)
     syslog-logger (1.6.8)
     thor (0.20.3)
     tomlrb (1.3.0)