diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 2fe90cad7..d12cfd5b6 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -16,7 +16,7 @@ GEM
     coffee-script-source (1.12.2)
     colorator (1.1.0)
     commonmarker (0.23.11)
-    concurrent-ruby (1.3.5)
+    concurrent-ruby (1.3.7)
     csv (3.3.4)
     dnsruby (1.73.1)
       base64 (>= 0.2)