diff --git a/MODULE.bazel b/MODULE.bazel
index e3a8e36ce70c..ef2196b07514 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -247,7 +247,7 @@ erlang_package.hex_package(
 
 erlang_package.git_package(
     repository = "rabbitmq/osiris",
-    tag = "v1.4.3",
+    tag = "v1.5.0",
 )
 
 erlang_package.hex_package(
diff --git a/deps/rabbit/Makefile b/deps/rabbit/Makefile
index ea6704b6e463..71a746580d8e 100644
--- a/deps/rabbit/Makefile
+++ b/deps/rabbit/Makefile
@@ -148,7 +148,7 @@ TEST_DEPS = rabbitmq_ct_helpers rabbitmq_ct_client_helpers amqp_client meck prop
 PLT_APPS += mnesia
 
 dep_syslog = git https://github.com/schlagert/syslog 4.0.0
-dep_osiris = git https://github.com/rabbitmq/osiris v1.4.3
+dep_osiris = git https://github.com/rabbitmq/osiris v1.5.0
 dep_systemd = hex 0.6.1
 dep_seshat = hex 0.4.0
 
diff --git a/deps/rabbit/src/rabbit_stream_queue.erl b/deps/rabbit/src/rabbit_stream_queue.erl
index 1dd9ff1ee3e0..02ee2de9efd7 100644
--- a/deps/rabbit/src/rabbit_stream_queue.erl
+++ b/deps/rabbit/src/rabbit_stream_queue.erl
@@ -365,13 +365,11 @@ credit(QName, CTag, Credit, Drain, #stream_client{readers = Readers0,
     {State#stream_client{readers = Readers}, [{send_credit_reply, length(Msgs)},
                                               {deliver, CTag, true, Msgs}] ++ Actions}.
 
-deliver(QSs, #delivery{confirm = Confirm} = Delivery) ->
+deliver(QSs, #delivery{message = Msg, confirm = Confirm} = Delivery) ->
     lists:foldl(
-      fun({_Q, stateless}, {Qs, Actions}) ->
-              %% TODO what do we do with stateless?
-              %% QRef = amqqueue:get_pid(Q),
-              %% ok = rabbit_fifo_client:untracked_enqueue(
-              %%        [QRef], Delivery#delivery.message),
+      fun({Q, stateless}, {Qs, Actions}) ->
+              LeaderPid = amqqueue:get_pid(Q),
+              ok = osiris:write(LeaderPid, msg_to_iodata(Msg)),
               {Qs, Actions};
          ({Q, S0}, {Qs, Actions}) ->
               {S, As} = deliver(Confirm, Delivery, S0),
diff --git a/deps/rabbit/test/rabbit_stream_queue_SUITE.erl b/deps/rabbit/test/rabbit_stream_queue_SUITE.erl
index 342cb61d5fd0..7591262091b7 100644
--- a/deps/rabbit/test/rabbit_stream_queue_SUITE.erl
+++ b/deps/rabbit/test/rabbit_stream_queue_SUITE.erl
@@ -124,7 +124,8 @@ all_tests() ->
      update_retention_policy,
      queue_info,
      tracking_status,
-     restart_stream
+     restart_stream,
+     dead_letter_target
     ].
 
 %% -------------------------------------------------------------------
@@ -2329,6 +2330,45 @@ purge(Config) ->
                 amqp_channel:call(Ch, #'queue.purge'{queue = Q})),
     rabbit_ct_broker_helpers:rpc(Config, 0, ?MODULE, delete_testcase_queue, [Q]).
 
+dead_letter_target(Config) ->
+    [Server | _] = rabbit_ct_broker_helpers:get_node_configs(Config, nodename),
+    Ch = rabbit_ct_client_helpers:open_channel(Config, Server),
+    Q = ?config(queue_name, Config),
+    ?assertEqual({'queue.declare_ok', Q, 0, 0},
+                 declare(Ch, Q, [{<<"x-queue-type">>, longstr, <<"stream">>}])),
+
+    SourceQ = <<Q/binary, "_source">>,
+    ?assertEqual({'queue.declare_ok', SourceQ, 0, 0},
+                 declare(Ch, SourceQ, [{<<"x-queue-type">>, longstr, <<"classic">>},
+                                       {<<"x-dead-letter-exchange">>, longstr, <<>>},
+                                       {<<"x-dead-letter-routing-key">>, longstr, Q}
+                                      ])),
+
+    publish_confirm(Ch, SourceQ, [<<"msg">>]),
+    Ch1 = rabbit_ct_client_helpers:open_channel(Config, Server),
+    qos(Ch1, 1, false),
+    CTag = <<"ctag">>,
+    amqp_channel:subscribe(Ch1,
+                           #'basic.consume'{queue = SourceQ,
+                                            no_ack = false,
+                                            consumer_tag = CTag},
+                           self()),
+    receive
+        #'basic.consume_ok'{consumer_tag = CTag} ->
+             ok
+    after 5000 ->
+              exit(basic_consume_ok_timeout)
+    end,
+    receive
+        {#'basic.deliver'{delivery_tag = DeliveryTag}, _} ->
+            ok = amqp_channel:cast(Ch1, #'basic.nack'{delivery_tag = DeliveryTag,
+                                                      requeue =false,
+                                                      multiple     = false}),
+            quorum_queue_utils:wait_for_messages(Config, [[Q, <<"1">>, <<"1">>, <<"0">>]])
+    after 5000 ->
+            exit(timeout)
+    end,
+    rabbit_ct_broker_helpers:rpc(Config, 0, ?MODULE, delete_testcase_queue, [Q]).
 %%----------------------------------------------------------------------------
 
 delete_queues(Qs) when is_list(Qs) ->