diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 3baa8e8410822809f144320e71cdbac2bfd18acc..d28c6f16299bde9f060a4e8b4c5ec82e95c50724 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -221,7 +221,7 @@ GEM
     parallel (1.17.0)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (3.1.0)
+    public_suffix (3.1.1)
     rainbow (3.0.0)
     rake (12.3.2)
     rb-fsevent (0.10.3)