diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 48d09ed7..7370bd5e 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -96,7 +96,8 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     redcarpet (3.5.1)
-    rexml (3.2.5)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rouge (3.23.0)
     sass (3.7.4)
       sass-listen (~> 4.0.0)
@@ -109,6 +110,7 @@ GEM
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
+    strscan (3.1.0)
     temple (0.8.2)
     thor (1.0.1)
     thread_safe (0.3.6)