diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 73f3e8e2..f7b29efc 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -13,8 +13,8 @@ GEM
       minitest (>= 5.1, < 6)
       securerandom (>= 0.3)
       tzinfo (~> 2.0, >= 2.0.5)
-    addressable (2.8.1)
-      public_suffix (>= 2.0.2, < 6.0)
+    addressable (2.9.0)
+      public_suffix (>= 2.0.2, < 8.0)
     base64 (0.3.0)
     benchmark (0.5.0)
     bigdecimal (4.1.0)
@@ -256,7 +256,7 @@ GEM
       sawyer (~> 0.8.0, >= 0.5.3)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (3.1.1)
+    public_suffix (4.0.7)
     racc (1.8.1)
     rake (13.0.1)
     rb-fsevent (0.10.4)