diff --git a/Gemfile.lock b/Gemfile.lock
index 592fe0b2..2fe6e49c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -81,7 +81,8 @@ GEM
       rack (>= 1.3)
     rainbow (3.1.1)
     regexp_parser (2.8.1)
-    rexml (3.2.6)
+    rexml (3.3.6)
+      strscan
     rspec (3.12.0)
       rspec-core (~> 3.12.0)
       rspec-expectations (~> 3.12.0)
@@ -112,6 +113,7 @@ GEM
     ruby-progressbar (1.13.0)
     sqlite3 (1.6.6)
       mini_portile2 (~> 2.8.0)
+    strscan (3.1.0)
     sync (0.5.0)
     sys-uname (1.2.3)
       ffi (~> 1.1)