diff --git a/Gemfile.lock b/Gemfile.lock
index 11acdc1f8..7899dc1a3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -332,7 +332,8 @@ GEM
     responders (3.1.0)
       actionpack (>= 5.2)
       railties (>= 5.2)
-    rexml (3.2.5)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rspec-core (3.10.1)
       rspec-support (~> 3.10.0)
     rspec-expectations (3.10.1)
@@ -408,6 +409,7 @@ GEM
       sprockets (>= 3.0.0)
     sqlite3 (1.5.4)
       mini_portile2 (~> 2.8.0)
+    strscan (3.1.0)
     temple (0.8.2)
     terrapin (0.6.0)
       climate_control (>= 0.0.3, < 1.0)