diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 100d3efd..a7db7ecb 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -102,7 +102,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rexml (3.3.9)
+    rexml (3.4.2)
     rouge (4.2.1)
     safe_yaml (1.0.5)
     sass-embedded (1.83.0-x86_64-linux-gnu)