diff --git a/website/Gemfile.lock b/website/Gemfile.lock
index a2334fa70..157ec81b5 100644
--- a/website/Gemfile.lock
+++ b/website/Gemfile.lock
@@ -1,8 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     builder (3.2.3)
     coderay (1.1.0)
     colorator (1.1.0)
@@ -47,7 +47,7 @@ GEM
       mini_portile2 (~> 2.3.0)
     pathutil (0.16.1)
       forwardable-extended (~> 2.6)
-    public_suffix (3.0.3)
+    public_suffix (4.0.6)
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)