diff --git a/slate-docs/Gemfile.lock b/slate-docs/Gemfile.lock
index b5055a12..e901b0db 100644
--- a/slate-docs/Gemfile.lock
+++ b/slate-docs/Gemfile.lock
@@ -98,7 +98,8 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     redcarpet (3.6.0)
-    rexml (3.2.5)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rouge (3.30.0)
     sass (3.7.4)
       sass-listen (~> 4.0.0)
@@ -111,6 +112,7 @@ GEM
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
+    strscan (3.1.0)
     temple (0.10.0)
     thor (1.2.1)
     tilt (2.0.11)