diff --git a/apps/explorer/lib/explorer/chain.ex b/apps/explorer/lib/explorer/chain.ex
index 5a413168c7..881864927f 100644
--- a/apps/explorer/lib/explorer/chain.ex
+++ b/apps/explorer/lib/explorer/chain.ex
@@ -621,21 +621,11 @@ defmodule Explorer.Chain do
 
   See `Explorer.Chain.Import.all/1` for options and returns.
   """
-  @spec import_blocks(Import.all_options()) :: Import.all_result()
-  def import_blocks(options) do
+  @spec import(Import.all_options()) :: Import.all_result()
+  def import(options) do
     Import.all(options)
   end
 
-  @doc """
-  Bulk insert internal transactions and update `t:Explorer.Chain.Transaction.t/0` `internal_transactions_indexed_at`.
-
-  See `Explorer.Chain.Import.internal_transactions/1` for options and returns.
-  """
-  @spec import_internal_transactions(Import.internal_transactions_options()) :: Import.internal_transactions_result()
-  def import_internal_transactions(options) do
-    Import.internal_transactions(options)
-  end
-
   @doc """
   The number of `t:Explorer.Chain.Address.t/0`.
 
diff --git a/apps/explorer/lib/explorer/chain/import.ex b/apps/explorer/lib/explorer/chain/import.ex
index 8978d39209..04223f76e5 100644
--- a/apps/explorer/lib/explorer/chain/import.ex
+++ b/apps/explorer/lib/explorer/chain/import.ex
@@ -21,7 +21,7 @@ defmodule Explorer.Chain.Import do
   @typep timeout_option :: {:timeout, timeout}
   @typep timestamps :: %{inserted_at: DateTime.t(), updated_at: DateTime.t()}
   @typep timestamps_option :: {:timestamps, timestamps}
-  @typep transactions_option :: {:transactions, [on_conflict_option | params_option | timeout_option]}
+  @typep transactions_option :: {:transactions, [on_conflict_option | params_option | timeout_option | with_option]}
   @typep with_option :: {:with, changeset_function_name :: atom}
 
   @type all_options :: [
@@ -83,8 +83,6 @@ defmodule Explorer.Chain.Import do
   @insert_logs_timeout 60_000
   @insert_transactions_timeout 60_000
 
-  @update_transactions_timeout 60_000
-
   @doc """
   Bulk insert all data stored in the `Explorer`.
 
@@ -119,6 +117,7 @@ defmodule Explorer.Chain.Import do
     * `:addresses`
       * `:params` - `list` of params for `Explorer.Chain.Address.changeset/2`.
       * `:timeout` - the timeout for inserting all addresses.  Defaults to `#{@insert_addresses_timeout}` milliseconds.
+      * `:with` - the changeset function on `Explorer.Chain.Address` to use validate `:params`.
     * `:balances`
       * `:params` - `list` of params for `Explorer.Chain.Balance.changeset/2`.
       * `:timeout` - the timeout for inserting all balances.  Defaults to `#{@insert_balances_timeout}` milliseconds.
@@ -146,6 +145,7 @@ defmodule Explorer.Chain.Import do
       * `:params` - `list` of params for `Explorer.Chain.Transaction.changeset/2`.
       * `:timeout` - the timeout for inserting all transactions found in the params lists across all
         types. Defaults to `#{@insert_transactions_timeout}` milliseconds.
+      * `:with` - the changeset function on `Explorer.Chain.Transaction` to use validate `:params`.
   """
   @spec all(all_options()) :: all_result()
   def all(options) when is_list(options) do
@@ -165,56 +165,6 @@ defmodule Explorer.Chain.Import do
     end
   end
 
-  @doc """
-  Bulk insert internal transactions for a list of transactions.
-
-  ## Options
-
-    * `:addresses`
-      * `:params` - `list` of params for `Explorer.Chain.Address.changeset/2`.
-      * `:timeout` - the timeout for inserting all addresses.  Defaults to `#{@insert_addresses_timeout}` milliseconds.
-    * `:internal_transactions`
-      * `:params` - `list` of params for `Explorer.Chain.InternalTransaction.changeset/2`.
-      * `:timeout` - the timeout for inserting all internal transactions. Defaults to
-        `#{@insert_internal_transactions_timeout}` milliseconds.
-    * `:transactions`
-      * `:hashes` - `list` of `t:Explorer.Chain.Transaction.t/0` `hash`es that should have their
-          `internal_transactions_indexed_at` updated.
-      * `:timeout` - the timeout for updating transactions with `:hashes`.  Defaults to
-        `#{@update_transactions_timeout}` milliseconds.
-    * `:timeout` - the timeout for the whole `c:Ecto.Repo.transaction/0` call.  Defaults to `#{@transaction_timeout}`
-      milliseconds.
-  """
-  @spec internal_transactions(internal_transactions_options()) :: internal_transactions_result
-  def internal_transactions(options) when is_list(options) do
-    {transactions_options, import_options} = Keyword.pop(options, :transactions)
-    changes_list_options_list = import_options_to_changes_list_arguments_list(import_options)
-
-    with {:ok, ecto_schema_module_to_changes_list} <-
-           changes_list_arguments_list_to_ecto_schema_module_to_changes_list(changes_list_options_list) do
-      timestamps = timestamps()
-
-      ecto_schema_module_to_changes_list
-      |> ecto_schema_module_to_changes_list_to_multi(Keyword.put(options, :timestamps, timestamps))
-      |> Multi.run(:transactions, fn _ ->
-        transaction_hashes = Keyword.get(transactions_options, :hashes)
-        transactions_count = length(transaction_hashes)
-
-        query =
-          from(
-            t in Transaction,
-            where: t.hash in ^transaction_hashes,
-            update: [set: [internal_transactions_indexed_at: ^timestamps.updated_at]]
-          )
-
-        {^transactions_count, result} = Repo.update_all(query, [])
-
-        {:ok, result}
-      end)
-      |> import_transaction(options)
-    end
-  end
-
   defp broadcast_events(data) do
     for {event_type, event_data} <- data, event_type in ~w(addresses balances blocks logs transactions)a do
       broadcast_event_data(event_type, event_data)
@@ -384,13 +334,22 @@ defmodule Explorer.Chain.Import do
       %{InternalTransaction => internal_transactions_changes} ->
         timestamps = Keyword.fetch!(options, :timestamps)
 
-        Multi.run(multi, :internal_transactions, fn _ ->
+        multi
+        |> Multi.run(:internal_transactions, fn _ ->
           insert_internal_transactions(
             internal_transactions_changes,
             timeout: options[:internal_transactions][:timeout] || @insert_internal_transactions_timeout,
             timestamps: timestamps
           )
         end)
+        |> Multi.run(:internal_transactions_indexed_at_transactions, fn %{internal_transactions: internal_transactions}
+                                                                        when is_list(internal_transactions) ->
+          update_transactions_internal_transactions_indexed_at(
+            internal_transactions,
+            timeout: options[:transactions][:timeout] || @insert_transactions_timeout,
+            timestamps: timestamps
+          )
+        end)
 
       _ ->
         multi
@@ -643,6 +602,30 @@ defmodule Explorer.Chain.Import do
     {:ok, inserted}
   end
 
+  defp update_transactions_internal_transactions_indexed_at(internal_transactions, named_arguments)
+       when is_list(internal_transactions) and is_list(named_arguments) do
+    timeout = Keyword.fetch!(named_arguments, :timeout)
+    timestamps = Keyword.fetch!(named_arguments, :timestamps)
+
+    ordered_transaction_hashes =
+      internal_transactions
+      |> MapSet.new(& &1.transaction_hash)
+      |> Enum.sort()
+
+    query =
+      from(
+        t in Transaction,
+        where: t.hash in ^ordered_transaction_hashes,
+        update: [set: [internal_transactions_indexed_at: ^timestamps.updated_at]]
+      )
+
+    transaction_count = Enum.count(ordered_transaction_hashes)
+
+    {^transaction_count, result} = Repo.update_all(query, [], timeout: timeout)
+
+    {:ok, result}
+  end
+
   defp timestamp_changes_list(changes_list, timestamps) when is_list(changes_list) do
     Enum.map(changes_list, &timestamp_params(&1, timestamps))
   end
diff --git a/apps/explorer/test/explorer/chain_test.exs b/apps/explorer/test/explorer/chain_test.exs
index 3967ca2db4..c9924e83f0 100644
--- a/apps/explorer/test/explorer/chain_test.exs
+++ b/apps/explorer/test/explorer/chain_test.exs
@@ -1040,60 +1040,6 @@ defmodule Explorer.ChainTest do
     end
   end
 
-  describe "import_internal_transactions/1" do
-    test "updates address with contract code" do
-      smart_contract_bytecode =
-        "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"
-
-      address_hash = "0x1c494fa496f1cfd918b5ff190835af3aaf60987e"
-      insert(:address, hash: address_hash)
-
-      from_address_hash = "0x8cc2e4b51b4340cb3727cffe3f1878756e732cee"
-      from_address = insert(:address, hash: from_address_hash)
-
-      transaction_string_hash = "0x0705ea0a5b997d9aafd5c531e016d9aabe3297a28c0bd4ef005fe6ea329d301b"
-      insert(:transaction, from_address: from_address, hash: transaction_string_hash)
-
-      options = [
-        addresses: [
-          params: [
-            %{
-              contract_code: smart_contract_bytecode,
-              hash: address_hash
-            }
-          ]
-        ],
-        internal_transactions: [
-          params: [
-            %{
-              created_contract_address_hash: address_hash,
-              created_contract_code: smart_contract_bytecode,
-              from_address_hash: from_address_hash,
-              gas: 184_531,
-              gas_used: 84531,
-              index: 0,
-              init:
-                "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",
-              trace_address: [],
-              transaction_hash: transaction_string_hash,
-              type: "create",
-              value: 0
-            }
-          ]
-        ],
-        transactions: [
-          hashes: [transaction_string_hash]
-        ]
-      ]
-
-      assert {:ok, _} = Chain.import_internal_transactions(options)
-
-      address = Explorer.Repo.one(from(address in Explorer.Chain.Address, where: address.hash == ^address_hash))
-
-      assert address.contract_code != nil
-    end
-  end
-
   describe "stream_unfetched_balances/2" do
     test "with existing `t:Explorer.Chain.Balance.t/0` with same `address_hash` and `block_number` " <>
            "does not return `t:Explorer.Chain.Block.t/0` `miner_hash`" do
@@ -1469,7 +1415,7 @@ defmodule Explorer.ChainTest do
     assert [{^current_pid, _}] = Registry.lookup(Registry.ChainEvents, :logs)
   end
 
-  describe "import_blocks" do
+  describe "import" do
     @import_data [
       blocks: [
         params: [
@@ -1558,25 +1504,25 @@ defmodule Explorer.ChainTest do
 
     test "publishes addresses with updated fetched_balance data to subscribers on insert" do
       Chain.subscribe_to_events(:addresses)
-      Chain.import_blocks(@import_data)
+      Chain.import(@import_data)
       assert_received {:chain_event, :addresses, [%Address{}, %Address{}]}
     end
 
     test "publishes block data to subscribers on insert" do
       Chain.subscribe_to_events(:blocks)
-      Chain.import_blocks(@import_data)
+      Chain.import(@import_data)
       assert_received {:chain_event, :blocks, [%Block{}]}
     end
 
     test "publishes log data to subscribers on insert" do
       Chain.subscribe_to_events(:logs)
-      Chain.import_blocks(@import_data)
+      Chain.import(@import_data)
       assert_received {:chain_event, :logs, [%Log{}]}
     end
 
     test "publishes transaction hashes data to subscribers on insert" do
       Chain.subscribe_to_events(:transactions)
-      Chain.import_blocks(@import_data)
+      Chain.import(@import_data)
       assert_received {:chain_event, :transactions, [%Hash{}]}
     end
 
@@ -1584,7 +1530,7 @@ defmodule Explorer.ChainTest do
       non_broadcast_data = Keyword.merge(@import_data, broadcast: false)
 
       Chain.subscribe_to_events(:logs)
-      Chain.import_blocks(non_broadcast_data)
+      Chain.import(non_broadcast_data)
       refute_received {:chain_event, :logs, [%Log{}]}
     end
   end
diff --git a/apps/explorer/test/explorer/import_test.exs b/apps/explorer/test/explorer/import_test.exs
index 606d630fd8..c78d960a57 100644
--- a/apps/explorer/test/explorer/import_test.exs
+++ b/apps/explorer/test/explorer/import_test.exs
@@ -1,5 +1,117 @@
 defmodule Explorer.Chain.ImportTest do
   use Explorer.DataCase
 
-  doctest Explorer.Chain.Import
+  alias Explorer.Chain.Import
+
+  doctest Import
+
+  describe "all/1" do
+    test "updates address with contract code" do
+      smart_contract_bytecode =
+        "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"
+
+      address_hash = "0x1c494fa496f1cfd918b5ff190835af3aaf60987e"
+      insert(:address, hash: address_hash)
+
+      from_address_hash = "0x8cc2e4b51b4340cb3727cffe3f1878756e732cee"
+      from_address = insert(:address, hash: from_address_hash)
+
+      transaction_string_hash = "0x0705ea0a5b997d9aafd5c531e016d9aabe3297a28c0bd4ef005fe6ea329d301b"
+      insert(:transaction, from_address: from_address, hash: transaction_string_hash)
+
+      options = [
+        addresses: [
+          params: [
+            %{
+              contract_code: smart_contract_bytecode,
+              hash: address_hash
+            }
+          ]
+        ],
+        internal_transactions: [
+          params: [
+            %{
+              created_contract_address_hash: address_hash,
+              created_contract_code: smart_contract_bytecode,
+              from_address_hash: from_address_hash,
+              gas: 184_531,
+              gas_used: 84531,
+              index: 0,
+              init:
+                "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",
+              trace_address: [],
+              transaction_hash: transaction_string_hash,
+              type: "create",
+              value: 0
+            }
+          ]
+        ]
+      ]
+
+      assert {:ok, _} = Import.all(options)
+
+      address = Explorer.Repo.one(from(address in Explorer.Chain.Address, where: address.hash == ^address_hash))
+
+      assert address.contract_code != nil
+    end
+
+    test "with internal_transactions updates Transaction internal_transactions_indexed_at" do
+      from_address_hash = "0xe8ddc5c7a2d2f0d7a9798459c0104fdf5e987aca"
+      to_address_hash = "0x8bf38d4764929064f2d4d3a56520a76ab3df415b"
+      transaction_hash = "0x3a3eb134e6792ce9403ea4188e5e79693de9e4c94e499db132be086400da79e6"
+
+      options = [
+        addresses: [
+          params: [
+            %{hash: from_address_hash},
+            %{hash: to_address_hash}
+          ]
+        ],
+        transactions: [
+          params: [
+            %{
+              from_address_hash: from_address_hash,
+              gas: 4_677_320,
+              gas_price: 1,
+              hash: transaction_hash,
+              input: "0x",
+              nonce: 0,
+              r: 0,
+              s: 0,
+              v: 0,
+              value: 0
+            }
+          ],
+          on_conflict: :replace_all
+        ],
+        internal_transactions: [
+          params: [
+            %{
+              block_number: 35,
+              call_type: "call",
+              from_address_hash: from_address_hash,
+              gas: 4_677_320,
+              gas_used: 27770,
+              index: 0,
+              output: "0x",
+              to_address_hash: to_address_hash,
+              trace_address: [],
+              transaction_hash: transaction_hash,
+              type: "call",
+              value: 0
+            }
+          ]
+        ]
+      ]
+
+      refute Enum.any?(options[:transactions][:params], &Map.has_key?(&1, :internal_transactions_indexed_at))
+
+      assert {:ok, _} = Import.all(options)
+
+      transaction =
+        Explorer.Repo.one(from(transaction in Explorer.Chain.Transaction, where: transaction.hash == ^transaction_hash))
+
+      refute transaction.internal_transactions_indexed_at == nil
+    end
+  end
 end
diff --git a/apps/explorer_web/test/explorer_web/features/viewing_addresses_test.exs b/apps/explorer_web/test/explorer_web/features/viewing_addresses_test.exs
index 2dd91e6c16..59140a8c9e 100644
--- a/apps/explorer_web/test/explorer_web/features/viewing_addresses_test.exs
+++ b/apps/explorer_web/test/explorer_web/features/viewing_addresses_test.exs
@@ -280,7 +280,7 @@ defmodule ExplorerWeb.ViewingAddressesTest do
        ],
        balances: [%{address_hash: ^hash}]
      }} =
-      Chain.import_blocks(
+      Chain.import(
         addresses: [
           params: [
             %{
diff --git a/apps/indexer/lib/indexer/balance_fetcher.ex b/apps/indexer/lib/indexer/balance_fetcher.ex
index 66c30dbe31..7a62447879 100644
--- a/apps/indexer/lib/indexer/balance_fetcher.ex
+++ b/apps/indexer/lib/indexer/balance_fetcher.ex
@@ -75,7 +75,7 @@ defmodule Indexer.BalanceFetcher do
         addresses_params = balances_params_to_address_params(balances_params)
 
         {:ok, _} =
-          Chain.import_blocks(
+          Chain.import(
             addresses: [params: addresses_params, with: :balance_changeset],
             balances: [params: balances_params]
           )
diff --git a/apps/indexer/lib/indexer/block_fetcher.ex b/apps/indexer/lib/indexer/block_fetcher.ex
index 45ba0eb544..0039323dc9 100644
--- a/apps/indexer/lib/indexer/block_fetcher.ex
+++ b/apps/indexer/lib/indexer/block_fetcher.ex
@@ -280,7 +280,7 @@ defmodule Indexer.BlockFetcher do
 
     options_with_broadcast = Keyword.merge(import_options, broadcast: indexer_mode == :realtime_index)
 
-    with {:ok, results} <- Chain.import_blocks(options_with_broadcast) do
+    with {:ok, results} <- Chain.import(options_with_broadcast) do
       async_import_remaining_block_data(
         results,
         address_hash_to_fetched_balance_block_number: address_hash_to_fetched_balance_block_number,
@@ -300,8 +300,8 @@ defmodule Indexer.BlockFetcher do
     end
   end
 
-  # `fetched_balance_block_number` is needed for the `BalanceFetcher`, but should not be used for
-  # `import_blocks` because the balance is not known yet.
+  # `fetched_balance_block_number` is needed for the `BalanceFetcher`, but should not be used for `import` because the
+  # balance is not known yet.
   defp pop_address_hash_to_fetched_balance_block_number(options) do
     {address_hash_fetched_balance_block_number_pairs, import_options} =
       get_and_update_in(options, [:addresses, :params, Access.all()], &pop_hash_fetched_balance_block_number/1)
diff --git a/apps/indexer/lib/indexer/internal_transaction_fetcher.ex b/apps/indexer/lib/indexer/internal_transaction_fetcher.ex
index 09479adc82..fd4f9e3e7b 100644
--- a/apps/indexer/lib/indexer/internal_transaction_fetcher.ex
+++ b/apps/indexer/lib/indexer/internal_transaction_fetcher.ex
@@ -99,13 +99,10 @@ defmodule Indexer.InternalTransactionFetcher do
             {hash, block_number}
           end)
 
-        transaction_hashes = Enum.map(unique_transactions_params, &Map.fetch!(&1, :hash_data))
-
         with {:ok, %{addresses: address_hashes}} <-
-               Chain.import_internal_transactions(
+               Chain.import(
                  addresses: [params: addresses_params],
-                 internal_transactions: [params: internal_transactions_params],
-                 transactions: [hashes: transaction_hashes]
+                 internal_transactions: [params: internal_transactions_params]
                ) do
           address_hashes
           |> Enum.map(fn address_hash ->
diff --git a/apps/indexer/lib/indexer/pending_transaction_fetcher.ex b/apps/indexer/lib/indexer/pending_transaction_fetcher.ex
index c90a7642fc..37775d406e 100644
--- a/apps/indexer/lib/indexer/pending_transaction_fetcher.ex
+++ b/apps/indexer/lib/indexer/pending_transaction_fetcher.ex
@@ -97,7 +97,7 @@ defmodule Indexer.PendingTransactionFetcher do
         # affected the address balance yet since address balance is a balance at a give block and these transactions are
         # blockless.
         {:ok, _} =
-          Chain.import_blocks(
+          Chain.import(
             addresses: [params: addresses_params],
             transactions: [on_conflict: :nothing, params: transactions_params]
           )