diff --git a/Gemfile.lock b/Gemfile.lock
index 60b03bd..f44789d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -52,10 +52,12 @@ GEM
     public_suffix (4.0.6)
     rake (12.3.3)
     rchardet (1.8.0)
-    rexml (3.2.5)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     sawyer (0.8.2)
       addressable (>= 2.3.5)
       faraday (> 0.8, < 2.0)
+    strscan (3.1.0)
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     thor (0.20.3)