diff --git a/Gemfile.lock b/Gemfile.lock
index ad4026e8b..95277dff2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -208,7 +208,8 @@ GEM
     responders (3.1.1)
       actionpack (>= 5.2)
       railties (>= 5.2)
-    rexml (3.2.6)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     ronn (0.7.3)
       hpricot (>= 0.8.2)
       mustache (>= 0.7.0)
@@ -294,6 +295,7 @@ GEM
     sqlite3 (1.4.4)
     strong_migrations (0.7.9)
       activerecord (>= 5)
+    strscan (3.1.0)
     sync (0.5.0)
     term-ansicolor (1.7.1)
       tins (~> 1.0)