diff --git a/Gemfile.lock b/Gemfile.lock
index e4cac8d55c..6f011be8cc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -125,7 +125,8 @@ GEM
     public_suffix (4.0.6)
     rchardet (1.8.0)
     redcarpet (3.5.1)
-    rexml (3.2.5)
+    rexml (3.3.3)
+      strscan
     rouge (3.26.0)
     ruby-macho (1.4.0)
     ruby2_keywords (0.0.4)
@@ -135,6 +136,7 @@ GEM
       addressable (>= 2.3.5)
       faraday (> 0.8, < 2.0)
     sqlite3 (1.4.2)
+    strscan (3.1.0)
     terminal-table (3.0.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     thread_safe (0.3.6)