diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 8e7a75c48..17eb634c5 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -99,8 +99,8 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     redcarpet (3.5.1)
-    rexml (3.2.8)
-      strscan (>= 3.0.9)
+    rexml (3.3.3)
+      strscan
     rouge (2.2.1)
     sassc (2.4.0)
       ffi (~> 1.9)