diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 0018857e..399f260c 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -16,7 +16,7 @@ GEM
     coffee-script-source (1.11.1)
     colorator (1.1.0)
     commonmarker (0.23.12)
-    concurrent-ruby (1.3.6)
+    concurrent-ruby (1.3.7)
     dnsruby (1.72.3)
       base64 (~> 0.2.0)
       simpleidn (~> 0.2.1)