diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 034478e290..e9c9c7a259 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -7,8 +7,8 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     algoliasearch (1.27.1)
       httpclient (~> 2.8, >= 2.8.3)
       json (>= 1.5.1)
@@ -109,7 +109,7 @@ GEM
     open4 (1.3.4)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (4.0.1)
+    public_suffix (5.0.0)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)