diff --git a/Gemfile.lock b/Gemfile.lock
index 399bad1..af4e73b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -70,7 +70,8 @@ GEM
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.2.4)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rouge (3.26.0)
     safe_yaml (1.0.5)
     sassc (2.4.0)
@@ -88,6 +89,8 @@ GEM
       rack-test
       sinatra (~> 1.4.0)
       tilt (>= 1.3, < 3)
+    strscan (3.1.0)
+    strscan (3.1.0-java)
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     thread_safe (0.3.6)