diff --git a/lib/livebook/config.ex b/lib/livebook/config.ex
index f3a278b55..4ca01f289 100644
--- a/lib/livebook/config.ex
+++ b/lib/livebook/config.ex
@@ -695,7 +695,7 @@ defmodule Livebook.Config do
   def identity_provider!(env) do
     case System.get_env(env) do
       nil ->
-        {:session, LivebookWeb.SessionIdentity, :unused}
+        {:session, LivebookWeb.ZTA.SessionIdentity, :unused}
 
       "custom:" <> module_key ->
         destructure [module, key], String.split(module_key, ":", parts: 2)
diff --git a/lib/livebook_web/session_identity.ex b/lib/livebook_web/zta/session_identity.ex
similarity index 90%
rename from lib/livebook_web/session_identity.ex
rename to lib/livebook_web/zta/session_identity.ex
index 7cbc7e122..143dde000 100644
--- a/lib/livebook_web/session_identity.ex
+++ b/lib/livebook_web/zta/session_identity.ex
@@ -1,4 +1,4 @@
-defmodule LivebookWeb.SessionIdentity do
+defmodule LivebookWeb.ZTA.SessionIdentity do
   # This module implements the ZTA contract specific to Livebook cookies
 
   import Plug.Conn
diff --git a/test/livebook/config_test.exs b/test/livebook/config_test.exs
index fea5603ab..5287c83b6 100644
--- a/test/livebook/config_test.exs
+++ b/test/livebook/config_test.exs
@@ -39,9 +39,9 @@ defmodule Livebook.ConfigTest do
         assert Config.identity_provider!("TEST_IDENTITY_PROVIDER") == {:custom, Module, nil}
       end)
 
-      with_env([TEST_IDENTITY_PROVIDER: "custom:LivebookWeb.SessionIdentity:extra"], fn ->
+      with_env([TEST_IDENTITY_PROVIDER: "custom:LivebookWeb.ZTA.SessionIdentity:extra"], fn ->
         assert Config.identity_provider!("TEST_IDENTITY_PROVIDER") ==
-                 {:custom, LivebookWeb.SessionIdentity, "extra"}
+                 {:custom, LivebookWeb.ZTA.SessionIdentity, "extra"}
       end)
 
       with_env([TEST_IDENTITY_PROVIDER: "cloudflare:123"], fn ->