diff --git a/setup.cfg b/setup.cfg
index 33ee12e26..b8af7a30b 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -45,7 +45,7 @@ install_requires =
     ophyd-async >= 0.3a5
     bluesky >= 1.13.0a3
     blueapi >= 0.4.3-rc1
-    dls-dodal @ git+https://github.com/DiamondLightSource/dodal.git@ce2a48780b979fb585214092741b76c449b05452
+    dls-dodal @ git+https://github.com/DiamondLightSource/dodal.git@1609c2dccdc85f43b02de5f5e0a12722842f7d1d
 
 [options.entry_points]
 console_scripts =
diff --git a/src/hyperion/device_setup_plans/read_hardware_for_setup.py b/src/hyperion/device_setup_plans/read_hardware_for_setup.py
index 3a2cb960c..2521fc7c0 100644
--- a/src/hyperion/device_setup_plans/read_hardware_for_setup.py
+++ b/src/hyperion/device_setup_plans/read_hardware_for_setup.py
@@ -7,7 +7,7 @@
 from dodal.devices.eiger import EigerDetector
 from dodal.devices.flux import Flux
 from dodal.devices.robot import BartRobot
-from dodal.devices.s4_slit_gaps import S4SlitGaps
+from dodal.devices.slits import Slits
 from dodal.devices.smargon import Smargon
 from dodal.devices.synchrotron import Synchrotron
 from dodal.devices.undulator import Undulator
@@ -19,7 +19,7 @@
 def read_hardware_for_ispyb_pre_collection(
     undulator: Undulator,
     synchrotron: Synchrotron,
-    s4_slit_gaps: S4SlitGaps,
+    s4_slit_gaps: Slits,
     aperture_scatterguard: ApertureScatterguard,
     robot: BartRobot,
     smargon: Smargon,
@@ -30,8 +30,8 @@ def read_hardware_for_ispyb_pre_collection(
     )  # gives name to event *descriptor* document
     yield from bps.read(undulator.current_gap)
     yield from bps.read(synchrotron.synchrotron_mode)
-    yield from bps.read(s4_slit_gaps.xgap)
-    yield from bps.read(s4_slit_gaps.ygap)
+    yield from bps.read(s4_slit_gaps.x_gap)
+    yield from bps.read(s4_slit_gaps.y_gap)
     yield from bps.read(aperture_scatterguard)
     yield from bps.read(smargon.x)
     yield from bps.read(smargon.y)
diff --git a/src/hyperion/experiment_plans/flyscan_xray_centre_plan.py b/src/hyperion/experiment_plans/flyscan_xray_centre_plan.py
index fa903b913..4249f449b 100755
--- a/src/hyperion/experiment_plans/flyscan_xray_centre_plan.py
+++ b/src/hyperion/experiment_plans/flyscan_xray_centre_plan.py
@@ -24,7 +24,7 @@
 from dodal.devices.fast_grid_scan import set_fast_grid_scan_params as set_flyscan_params
 from dodal.devices.flux import Flux
 from dodal.devices.robot import BartRobot
-from dodal.devices.s4_slit_gaps import S4SlitGaps
+from dodal.devices.slits import Slits
 from dodal.devices.smargon import Smargon, StubPosition
 from dodal.devices.synchrotron import Synchrotron
 from dodal.devices.undulator import Undulator
@@ -79,7 +79,7 @@ class FlyScanXRayCentreComposite:
     eiger: EigerDetector
     zebra_fast_grid_scan: ZebraFastGridScan
     flux: Flux
-    s4_slit_gaps: S4SlitGaps
+    s4_slit_gaps: Slits
     smargon: Smargon
     undulator: Undulator
     synchrotron: Synchrotron
diff --git a/src/hyperion/experiment_plans/grid_detect_then_xray_centre_plan.py b/src/hyperion/experiment_plans/grid_detect_then_xray_centre_plan.py
index fc131b753..37507b503 100644
--- a/src/hyperion/experiment_plans/grid_detect_then_xray_centre_plan.py
+++ b/src/hyperion/experiment_plans/grid_detect_then_xray_centre_plan.py
@@ -18,7 +18,7 @@
 from dodal.devices.oav.oav_parameters import OAV_CONFIG_JSON, OAVParameters
 from dodal.devices.oav.pin_image_recognition import PinTipDetection
 from dodal.devices.robot import BartRobot
-from dodal.devices.s4_slit_gaps import S4SlitGaps
+from dodal.devices.slits import Slits
 from dodal.devices.smargon import Smargon
 from dodal.devices.synchrotron import Synchrotron
 from dodal.devices.undulator import Undulator
@@ -75,7 +75,7 @@ class GridDetectThenXRayCentreComposite:
     pin_tip_detection: PinTipDetection
     smargon: Smargon
     synchrotron: Synchrotron
-    s4_slit_gaps: S4SlitGaps
+    s4_slit_gaps: Slits
     undulator: Undulator
     xbpm_feedback: XBPMFeedback
     zebra: Zebra
diff --git a/src/hyperion/experiment_plans/robot_load_then_centre_plan.py b/src/hyperion/experiment_plans/robot_load_then_centre_plan.py
index f6c23550a..d4c259f97 100644
--- a/src/hyperion/experiment_plans/robot_load_then_centre_plan.py
+++ b/src/hyperion/experiment_plans/robot_load_then_centre_plan.py
@@ -20,7 +20,7 @@
 from dodal.devices.oav.oav_detector import OAV
 from dodal.devices.oav.pin_image_recognition import PinTipDetection
 from dodal.devices.robot import BartRobot, SampleLocation
-from dodal.devices.s4_slit_gaps import S4SlitGaps
+from dodal.devices.slits import Slits
 from dodal.devices.smargon import Smargon, StubPosition
 from dodal.devices.synchrotron import Synchrotron
 from dodal.devices.undulator import Undulator
@@ -67,7 +67,7 @@ class RobotLoadThenCentreComposite:
     pin_tip_detection: PinTipDetection
     smargon: Smargon
     synchrotron: Synchrotron
-    s4_slit_gaps: S4SlitGaps
+    s4_slit_gaps: Slits
     undulator: Undulator
     zebra: Zebra
     zocalo: ZocaloResults
diff --git a/src/hyperion/experiment_plans/rotation_scan_plan.py b/src/hyperion/experiment_plans/rotation_scan_plan.py
index 39d9bb306..e466fd8c6 100644
--- a/src/hyperion/experiment_plans/rotation_scan_plan.py
+++ b/src/hyperion/experiment_plans/rotation_scan_plan.py
@@ -13,7 +13,7 @@
 from dodal.devices.eiger import EigerDetector
 from dodal.devices.flux import Flux
 from dodal.devices.robot import BartRobot
-from dodal.devices.s4_slit_gaps import S4SlitGaps
+from dodal.devices.slits import Slits
 from dodal.devices.smargon import Smargon
 from dodal.devices.synchrotron import Synchrotron
 from dodal.devices.undulator import Undulator
@@ -62,7 +62,7 @@ class RotationScanComposite:
     smargon: Smargon
     undulator: Undulator
     synchrotron: Synchrotron
-    s4_slit_gaps: S4SlitGaps
+    s4_slit_gaps: Slits
     zebra: Zebra
 
     def __post_init__(self):
diff --git a/src/hyperion/external_interaction/callbacks/ispyb_callback_base.py b/src/hyperion/external_interaction/callbacks/ispyb_callback_base.py
index 9129aa6d5..f033bc537 100644
--- a/src/hyperion/external_interaction/callbacks/ispyb_callback_base.py
+++ b/src/hyperion/external_interaction/callbacks/ispyb_callback_base.py
@@ -121,8 +121,8 @@ def _handle_ispyb_hardware_read(self, doc) -> Sequence[ScanDataInfo]:
             focal_spot_size_at_sampley=beamsize.y_um,
             undulator_gap1=doc["data"]["undulator-current_gap"],
             synchrotron_mode=synchrotron_mode.value,
-            slitgap_horizontal=doc["data"]["s4_slit_gaps_xgap"],
-            slitgap_vertical=doc["data"]["s4_slit_gaps_ygap"],
+            slitgap_horizontal=doc["data"]["s4_slit_gaps-x_gap"],
+            slitgap_vertical=doc["data"]["s4_slit_gaps-y_gap"],
         )
         hwscan_position_info = DataCollectionPositionInfo(
             pos_x=doc["data"]["smargon_x"],
diff --git a/tests/conftest.py b/tests/conftest.py
index c4616e991..2a0ef4fe0 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -33,7 +33,7 @@
 from dodal.devices.flux import Flux
 from dodal.devices.oav.oav_detector import OAVConfigParams
 from dodal.devices.robot import BartRobot
-from dodal.devices.s4_slit_gaps import S4SlitGaps
+from dodal.devices.slits import Slits
 from dodal.devices.smargon import Smargon
 from dodal.devices.synchrotron import Synchrotron, SynchrotronMode
 from dodal.devices.undulator import Undulator
@@ -547,7 +547,7 @@ def fake_create_rotation_devices(
     undulator: Undulator,
     aperture_scatterguard: ApertureScatterguard,
     synchrotron: Synchrotron,
-    s4_slit_gaps: S4SlitGaps,
+    s4_slit_gaps: Slits,
     dcm: DCM,
     robot: BartRobot,
     done_status,
diff --git a/tests/system_tests/experiment_plans/test_plan_system.py b/tests/system_tests/experiment_plans/test_plan_system.py
index 583f62fe8..33332df3a 100644
--- a/tests/system_tests/experiment_plans/test_plan_system.py
+++ b/tests/system_tests/experiment_plans/test_plan_system.py
@@ -3,7 +3,7 @@
 from bluesky.run_engine import RunEngine
 from dodal.beamlines import i03
 from dodal.devices.aperturescatterguard import ApertureScatterguard
-from dodal.devices.s4_slit_gaps import S4SlitGaps
+from dodal.devices.slits import Slits
 from dodal.devices.undulator import Undulator
 
 from hyperion.device_setup_plans.read_hardware_for_setup import (
@@ -20,7 +20,7 @@ async def test_getting_data_for_ispyb():
         f"{CONST.SIM.INSERTION_PREFIX}-MO-SERVC-01:", name="undulator"
     )
     synchrotron = i03.synchrotron(fake_with_ophyd_sim=True)
-    slit_gaps = S4SlitGaps(f"{CONST.SIM.BEAMLINE}-AL-SLITS-04:", name="slits")
+    slit_gaps = Slits(f"{CONST.SIM.BEAMLINE}-AL-SLITS-04:", name="slits")
     attenuator = i03.attenuator(fake_with_ophyd_sim=True)
     flux = i03.flux(fake_with_ophyd_sim=True)
     dcm = i03.dcm(fake_with_ophyd_sim=True)
@@ -29,9 +29,9 @@ async def test_getting_data_for_ispyb():
     )
     smargon = i03.smargon(fake_with_ophyd_sim=True)
 
-    undulator.wait_for_connection()
+    await undulator.connect()
     await synchrotron.connect()
-    slit_gaps.wait_for_connection()
+    await slit_gaps.connect()
     attenuator.wait_for_connection()
     flux.wait_for_connection()
     aperture_scatterguard.wait_for_connection()
diff --git a/tests/system_tests/external_interaction/test_ispyb_dev_connection.py b/tests/system_tests/external_interaction/test_ispyb_dev_connection.py
index 39bd9b6d9..f3d5630c2 100644
--- a/tests/system_tests/external_interaction/test_ispyb_dev_connection.py
+++ b/tests/system_tests/external_interaction/test_ispyb_dev_connection.py
@@ -12,7 +12,7 @@
 from bluesky.run_engine import RunEngine
 from dodal.devices.attenuator import Attenuator
 from dodal.devices.flux import Flux
-from dodal.devices.s4_slit_gaps import S4SlitGaps
+from dodal.devices.slits import Slits
 from dodal.devices.synchrotron import Synchrotron, SynchrotronMode
 from dodal.devices.undulator import Undulator
 from ophyd.status import Status
@@ -586,8 +586,12 @@ def test_ispyb_deposition_in_gridscan(
     fetch_datacollection_position_attribute: Callable[..., Any],
 ):
     os.environ["ISPYB_CONFIG_PATH"] = CONST.SIM.DEV_ISPYB_DATABASE_CFG
-    grid_detect_then_xray_centre_composite.s4_slit_gaps.xgap.user_readback.sim_put(0.1)  # type: ignore
-    grid_detect_then_xray_centre_composite.s4_slit_gaps.ygap.user_readback.sim_put(0.1)  # type: ignore
+    set_mock_value(
+        grid_detect_then_xray_centre_composite.s4_slit_gaps.x_gap.user_readback, 0.1
+    )
+    set_mock_value(
+        grid_detect_then_xray_centre_composite.s4_slit_gaps.y_gap.user_readback, 0.1
+    )
     ispyb_callback = GridscanISPyBCallback()
     RE.subscribe(ispyb_callback)
     RE(
@@ -756,7 +760,7 @@ def test_ispyb_deposition_in_rotation_plan(
     undulator: Undulator,
     attenuator: Attenuator,
     synchrotron: Synchrotron,
-    s4_slit_gaps: S4SlitGaps,
+    s4_slit_gaps: Slits,
     flux: Flux,
     robot,
     fake_create_devices: dict[str, Any],
@@ -789,11 +793,13 @@ def test_ispyb_deposition_in_rotation_plan(
         fake_create_rotation_devices.synchrotron.topup_start_countdown,  # pyright: ignore
         -1,
     )
-    fake_create_rotation_devices.s4_slit_gaps.xgap.user_readback.sim_put(  # pyright: ignore
-        test_slit_gap_horiz
+    set_mock_value(
+        fake_create_rotation_devices.s4_slit_gaps.x_gap.user_readback,
+        test_slit_gap_horiz,
     )
-    fake_create_rotation_devices.s4_slit_gaps.ygap.user_readback.sim_put(  # pyright: ignore
-        test_slit_gap_vert
+    set_mock_value(
+        fake_create_rotation_devices.s4_slit_gaps.y_gap.user_readback,
+        test_slit_gap_vert,
     )
     test_rotation_params.detector_params.expected_energy_ev = energy_ev
 
diff --git a/tests/unit_tests/experiment_plans/test_flyscan_xray_centre_plan.py b/tests/unit_tests/experiment_plans/test_flyscan_xray_centre_plan.py
index 0ed4978e0..811e9e4bf 100644
--- a/tests/unit_tests/experiment_plans/test_flyscan_xray_centre_plan.py
+++ b/tests/unit_tests/experiment_plans/test_flyscan_xray_centre_plan.py
@@ -206,8 +206,13 @@ def test_read_hardware_for_ispyb_updates_from_ophyd_devices(
             "radius_microns": 20,
             "location": (10, 11, 2, 13, 14),
         }
-        fake_fgs_composite.s4_slit_gaps.xgap.user_readback.sim_put(xgap_test_value)  # type: ignore
-        fake_fgs_composite.s4_slit_gaps.ygap.user_readback.sim_put(ygap_test_value)  # type: ignore
+        set_mock_value(
+            fake_fgs_composite.s4_slit_gaps.x_gap.user_readback, xgap_test_value
+        )
+        set_mock_value(
+            fake_fgs_composite.s4_slit_gaps.y_gap.user_readback, ygap_test_value
+        )
+
         flux_test_value = 10.0
         fake_fgs_composite.flux.flux_reading.sim_put(flux_test_value)  # type: ignore
 
@@ -254,9 +259,9 @@ def test_read_hardware_for_ispyb_updates_from_ophyd_devices(
                 {
                     "undulator-current_gap": undulator_test_value,
                     "synchrotron-synchrotron_mode": synchrotron_test_value.value,
-                    "s4_slit_gaps_xgap": xgap_test_value,
-                    "s4_slit_gaps_ygap": ygap_test_value,
-                    'aperture_scatterguard-selected_aperture': ap_sg_test_value
+                    "s4_slit_gaps-x_gap": xgap_test_value,
+                    "s4_slit_gaps-y_gap": ygap_test_value,
+                    aperture_scatterguard-selected_aperture': ap_sg_test_value
                 },
             )
             assert_event(
diff --git a/tests/unit_tests/experiment_plans/test_panda_flyscan_xray_centre_plan.py b/tests/unit_tests/experiment_plans/test_panda_flyscan_xray_centre_plan.py
index af28b211e..2fbe9d55a 100644
--- a/tests/unit_tests/experiment_plans/test_panda_flyscan_xray_centre_plan.py
+++ b/tests/unit_tests/experiment_plans/test_panda_flyscan_xray_centre_plan.py
@@ -151,8 +151,12 @@ def test_read_hardware_for_ispyb_updates_from_ophyd_devices(
         }
         xgap_test_value = 0.1234
         ygap_test_value = 0.2345
-        fake_fgs_composite.s4_slit_gaps.xgap.user_readback.sim_put(xgap_test_value)  # type: ignore
-        fake_fgs_composite.s4_slit_gaps.ygap.user_readback.sim_put(ygap_test_value)  # type: ignore
+        set_mock_value(
+            fake_fgs_composite.s4_slit_gaps.x_gap.user_readback, xgap_test_value
+        )
+        set_mock_value(
+            fake_fgs_composite.s4_slit_gaps.y_gap.user_readback, ygap_test_value
+        )
         flux_test_value = 10.0
         fake_fgs_composite.flux.flux_reading.sim_put(flux_test_value)  # type: ignore
 
@@ -191,8 +195,8 @@ def test_read_hardware_for_ispyb_updates_from_ophyd_devices(
                 {
                     "undulator-current_gap": undulator_test_value,
                     "synchrotron-synchrotron_mode": synchrotron_test_value.value,
-                    "s4_slit_gaps_xgap": xgap_test_value,
-                    "s4_slit_gaps_ygap": ygap_test_value,
+                    "s4_slit_gaps-x_gap": xgap_test_value,
+                    "s4_slit_gaps-y_gap": ygap_test_value,
                     'aperture_scatterguard-selected_aperture': ap_sg_test_value,
                 },
             )
diff --git a/tests/unit_tests/external_interaction/callbacks/conftest.py b/tests/unit_tests/external_interaction/callbacks/conftest.py
index 4a648044a..a067d8995 100644
--- a/tests/unit_tests/external_interaction/callbacks/conftest.py
+++ b/tests/unit_tests/external_interaction/callbacks/conftest.py
@@ -190,8 +190,8 @@ class TestData:
         "descriptor": "bd45c2e5-2b85-4280-95d7-a9a15800a78b",
         "time": 1666604299.828203,
         "data": {
-            "s4_slit_gaps_xgap": 0.1234,
-            "s4_slit_gaps_ygap": 0.2345,
+            "s4_slit_gaps-x_gap": 0.1234,
+            "s4_slit_gaps-y_gap": 0.2345,
             "synchrotron-synchrotron_mode": SynchrotronMode.USER,
             "undulator-current_gap": 1.234,
             "aperture_scatterguard-selected_aperture": {