diff --git a/website/Gemfile.lock b/website/Gemfile.lock
index 2063e26f..58bf73fd 100644
--- a/website/Gemfile.lock
+++ b/website/Gemfile.lock
@@ -46,7 +46,8 @@ GEM
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.2.5)
+    rexml (3.3.3)
+      strscan
     rouge (3.24.0)
     safe_yaml (1.0.5)
     sass (3.7.4)
@@ -54,6 +55,7 @@ GEM
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
+    strscan (3.1.0)
 
 PLATFORMS
   ruby