diff --git a/Gemfile.lock b/Gemfile.lock
index 8e4ce91c..7053444b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -118,7 +118,8 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.2.6)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rouge (4.2.1)
     ruby2_keywords (0.0.5)
     rubyzip (2.3.2)
@@ -128,6 +129,7 @@ GEM
     sawyer (0.9.2)
       addressable (>= 2.3.5)
       faraday (>= 0.17.3, < 3)
+    strscan (3.1.0)
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
     tzinfo (2.0.6)