diff --git a/priv/resource_snapshots/test_repo/authors/20251018130654_dev.json b/priv/resource_snapshots/test_repo/authors/20251018130654_dev.json
new file mode 100644
index 00000000..e14b635e
--- /dev/null
+++ b/priv/resource_snapshots/test_repo/authors/20251018130654_dev.json
@@ -0,0 +1,133 @@
+{
+  "attributes": [
+    {
+      "allow_nil?": false,
+      "default": "fragment(\"gen_random_uuid()\")",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": true,
+      "references": null,
+      "scale": null,
+      "size": null,
+      "source": "id",
+      "type": "uuid"
+    },
+    {
+      "allow_nil?": true,
+      "default": "nil",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": false,
+      "references": null,
+      "scale": null,
+      "size": null,
+      "source": "first_name",
+      "type": "text"
+    },
+    {
+      "allow_nil?": true,
+      "default": "nil",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": false,
+      "references": null,
+      "scale": null,
+      "size": null,
+      "source": "last_name",
+      "type": "text"
+    },
+    {
+      "allow_nil?": true,
+      "default": "nil",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": false,
+      "references": null,
+      "scale": null,
+      "size": null,
+      "source": "bio",
+      "type": "map"
+    },
+    {
+      "allow_nil?": true,
+      "default": "nil",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": false,
+      "references": null,
+      "scale": null,
+      "size": null,
+      "source": "bios",
+      "type": "jsonb"
+    },
+    {
+      "allow_nil?": true,
+      "default": "nil",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": false,
+      "references": null,
+      "scale": null,
+      "size": null,
+      "source": "badges",
+      "type": [
+        "array",
+        "text"
+      ]
+    },
+    {
+      "allow_nil?": true,
+      "default": "nil",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": false,
+      "references": null,
+      "scale": null,
+      "size": null,
+      "source": "settings",
+      "type": "jsonb"
+    },
+    {
+      "allow_nil?": true,
+      "default": "nil",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": false,
+      "references": null,
+      "scale": null,
+      "size": null,
+      "source": "identities",
+      "type": "jsonb"
+    },
+    {
+      "allow_nil?": true,
+      "default": "nil",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": false,
+      "references": null,
+      "scale": null,
+      "size": null,
+      "source": "preferences",
+      "type": [
+        "array",
+        "map"
+      ]
+    }
+  ],
+  "base_filter": null,
+  "check_constraints": [],
+  "custom_indexes": [],
+  "custom_statements": [],
+  "has_create_action": true,
+  "hash": "55CFEDA4CB07DD89D2807B080A6F0E14A0370D7EA0C48E67C36ACAC568137D95",
+  "identities": [],
+  "multitenancy": {
+    "attribute": null,
+    "global": null,
+    "strategy": null
+  },
+  "repo": "Elixir.AshPostgres.TestRepo",
+  "schema": null,
+  "table": "authors"
+}
\ No newline at end of file
diff --git a/priv/resource_snapshots/test_repo/authors/20251018130654_dev.json.license b/priv/resource_snapshots/test_repo/authors/20251018130654_dev.json.license
new file mode 100644
index 00000000..b0a44fab
--- /dev/null
+++ b/priv/resource_snapshots/test_repo/authors/20251018130654_dev.json.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2019 ash_postgres contributors <https://github.com/ash-project/ash_postgres/graphs.contributors>
+
+SPDX-License-Identifier: MIT
diff --git a/priv/test_repo/migrations/20251018130654_migrate_resources64_dev.exs b/priv/test_repo/migrations/20251018130654_migrate_resources64_dev.exs
new file mode 100644
index 00000000..ba9e1baf
--- /dev/null
+++ b/priv/test_repo/migrations/20251018130654_migrate_resources64_dev.exs
@@ -0,0 +1,27 @@
+# SPDX-FileCopyrightText: 2019 ash_postgres contributors <https://github.com/ash-project/ash_postgres/graphs.contributors>
+#
+# SPDX-License-Identifier: MIT
+
+defmodule AshPostgres.TestRepo.Migrations.MigrateResources64 do
+  @moduledoc """
+  Updates resources based on their most recent snapshots.
+
+  This file was autogenerated with `mix ash_postgres.generate_migrations`
+  """
+
+  use Ecto.Migration
+
+  def up do
+    alter table(:authors) do
+      add(:identities, :jsonb)
+      add(:preferences, {:array, :map})
+    end
+  end
+
+  def down do
+    alter table(:authors) do
+      remove(:preferences)
+      remove(:identities)
+    end
+  end
+end
diff --git a/test/storage_types_test.exs b/test/storage_types_test.exs
index ad414bf8..0f818048 100644
--- a/test/storage_types_test.exs
+++ b/test/storage_types_test.exs
@@ -93,4 +93,86 @@ defmodule AshPostgres.StorageTypesTest do
              |> Ash.Query.filter(not is_nil(settings["dues_reminders"]))
              |> Ash.read!()
   end
+
+  test "can bulk update {:array, CustomTypedStruct} stored as jsonb" do
+    %{id: id} =
+      Author
+      |> Ash.Changeset.for_create(
+        :create,
+        %{
+          first_name: "Test",
+          last_name: "User",
+          identities: [%{provider: "github", uid: "123"}, %{provider: "google", uid: "456"}]
+        }
+      )
+      |> Ash.create!()
+
+    %BulkResult{records: [author]} =
+      Author
+      |> Ash.Query.filter(id == ^id)
+      |> Ash.bulk_update(:update, %{identities: [%{provider: "gitlab", uid: "789"}]},
+        return_errors?: true,
+        notify?: true,
+        strategy: [:atomic, :stream, :atomic_batches],
+        allow_stream_with: :full_read,
+        return_records?: true
+      )
+
+    assert length(author.identities) == 1
+    assert %{provider: "gitlab", uid: "789"} = hd(author.identities)
+
+    %BulkResult{records: [author]} =
+      Author
+      |> Ash.Query.filter(id == ^id)
+      |> Ash.bulk_update(:update, %{identities: []},
+        return_errors?: true,
+        notify?: true,
+        strategy: [:atomic, :stream, :atomic_batches],
+        allow_stream_with: :full_read,
+        return_records?: true
+      )
+
+    assert author.identities == []
+  end
+
+  test "can bulk update {:array, CustomTypedStruct} stored as {:array, :map}" do
+    %{id: id} =
+      Author
+      |> Ash.Changeset.for_create(
+        :create,
+        %{
+          first_name: "Test",
+          last_name: "User",
+          preferences: [%{key: "theme", value: "dark"}, %{key: "lang", value: "en"}]
+        }
+      )
+      |> Ash.create!()
+
+    %BulkResult{records: [author]} =
+      Author
+      |> Ash.Query.filter(id == ^id)
+      |> Ash.bulk_update(:update, %{preferences: [%{key: "theme", value: "light"}]},
+        return_errors?: true,
+        notify?: true,
+        strategy: [:atomic, :stream, :atomic_batches],
+        allow_stream_with: :full_read,
+        return_records?: true
+      )
+
+    assert length(author.preferences) == 1
+    assert %{key: "theme", value: "light"} = hd(author.preferences)
+
+    %BulkResult{records: [author]} =
+      Author
+      |> Ash.Query.filter(id == ^id)
+      |> Ash.bulk_update(:update, %{preferences: []},
+        return_errors?: true,
+        notify?: true,
+        strategy: [:atomic, :stream, :atomic_batches],
+        allow_stream_with: :full_read,
+        return_records?: true
+      )
+
+    assert author.preferences == []
+  end
 end
diff --git a/test/support/resources/author.ex b/test/support/resources/author.ex
index 16ca5a8e..9a1203f8 100644
--- a/test/support/resources/author.ex
+++ b/test/support/resources/author.ex
@@ -23,8 +23,8 @@ defmodule AshPostgres.Test.Author do
     table("authors")
     repo(AshPostgres.TestRepo)
 
-    migration_types bios: :jsonb, settings: :jsonb
-    storage_types(bios: :jsonb, settings: :jsonb)
+    migration_types bios: :jsonb, settings: :jsonb, identities: :jsonb
+    storage_types(bios: :jsonb, settings: :jsonb, identities: :jsonb)
   end
 
   attributes do
@@ -35,6 +35,8 @@ defmodule AshPostgres.Test.Author do
     attribute(:bios, {:array, :map}, public?: true)
     attribute(:badges, {:array, :atom}, public?: true)
     attribute(:settings, AshPostgres.Test.Settings, public?: true)
+    attribute(:identities, {:array, AshPostgres.Test.Identity}, public?: true)
+    attribute(:preferences, {:array, AshPostgres.Test.Preference}, public?: true)
   end
 
   actions do
diff --git a/test/support/resources/identity.ex b/test/support/resources/identity.ex
new file mode 100644
index 00000000..d29aaa07
--- /dev/null
+++ b/test/support/resources/identity.ex
@@ -0,0 +1,13 @@
+# SPDX-FileCopyrightText: 2019 ash_postgres contributors <https://github.com/ash-project/ash_postgres/graphs.contributors>
+#
+# SPDX-License-Identifier: MIT
+
+defmodule AshPostgres.Test.Identity do
+  @moduledoc false
+  use Ash.TypedStruct
+
+  typed_struct do
+    field(:provider, :string, allow_nil?: false)
+    field(:uid, :string, allow_nil?: false)
+  end
+end
diff --git a/test/support/resources/preference.ex b/test/support/resources/preference.ex
new file mode 100644
index 00000000..b5e707fa
--- /dev/null
+++ b/test/support/resources/preference.ex
@@ -0,0 +1,13 @@
+# SPDX-FileCopyrightText: 2019 ash_postgres contributors <https://github.com/ash-project/ash_postgres/graphs.contributors>
+#
+# SPDX-License-Identifier: MIT
+
+defmodule AshPostgres.Test.Preference do
+  @moduledoc false
+  use Ash.TypedStruct
+
+  typed_struct do
+    field(:key, :string, allow_nil?: false)
+    field(:value, :string, allow_nil?: false)
+  end
+end