diff --git a/Gemfile.lock b/Gemfile.lock
index 341522f..b916c0d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -258,7 +258,8 @@ GEM
     regexp_parser (2.7.0)
     reline (0.4.2)
       io-console (~> 0.5)
-    rexml (3.2.5)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rspec-core (3.12.1)
       rspec-support (~> 3.12.0)
     rspec-expectations (3.12.2)
@@ -317,6 +318,7 @@ GEM
     stringio (3.1.0)
     strong_migrations (1.4.4)
       activerecord (>= 5.2)
+    strscan (3.1.0)
     test-prof (1.2.0)
     thor (1.2.1)
     timeout (0.3.2)