diff --git a/Gemfile.lock b/Gemfile.lock
index 79981a7..895539a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -63,7 +63,8 @@ GEM
     rb-fsevent (0.11.1)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.2.5)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rouge (3.30.0)
     ruby2_keywords (0.0.5)
     safe_yaml (1.0.5)
@@ -72,6 +73,7 @@ GEM
     sawyer (0.9.2)
       addressable (>= 2.3.5)
       faraday (>= 0.17.3, < 3)
+    strscan (3.1.0)
     terminal-table (2.0.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     unicode-display_width (1.8.0)