diff --git a/Gemfile.lock b/Gemfile.lock
index d1a18d5..a8f086e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -55,11 +55,13 @@ GEM
     open4 (1.3.4)
     public_suffix (4.0.6)
     rchardet (1.8.0)
-    rexml (3.2.5)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     ruby2_keywords (0.0.4)
     sawyer (0.8.2)
       addressable (>= 2.3.5)
       faraday (> 0.8, < 2.0)
+    strscan (3.1.0)
     terminal-table (3.0.1)
       unicode-display_width (>= 1.1.1, < 3)
     unicode-display_width (2.0.0)