diff --git a/setup.cfg b/setup.cfg
index 0daa275f7..be92f3c99 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -41,7 +41,7 @@ install_requires =
     ophyd-async >= 0.3a5
     bluesky >= 1.13.0a4
     blueapi >= 0.4.3-rc1
-    dls-dodal @ git+https://github.com/DiamondLightSource/dodal.git@d7e827bc600a1c5f0156d46297fea42a4425f118
+    dls-dodal @ git+https://github.com/DiamondLightSource/dodal.git@0ac5497b05ba52fb6531cc8de29dd2b0631fd11c
 
 [options.entry_points]
 console_scripts =
diff --git a/src/hyperion/experiment_plans/flyscan_xray_centre_plan.py b/src/hyperion/experiment_plans/flyscan_xray_centre_plan.py
index 68cac9577..92c071471 100755
--- a/src/hyperion/experiment_plans/flyscan_xray_centre_plan.py
+++ b/src/hyperion/experiment_plans/flyscan_xray_centre_plan.py
@@ -370,7 +370,7 @@ def set_aperture_for_bbox_size(
     new_selected_aperture = (
         AperturePosition.MEDIUM if bbox_size[0] < 2 else AperturePosition.LARGE
     )
-    gda_name = aperture_device._loaded_positions[new_selected_aperture].GDA_name
+    gda_name = aperture_device.get_gda_name_for_position(new_selected_aperture)
     LOGGER.info(
         f"Setting aperture to {new_selected_aperture} based on bounding box size {bbox_size}."
     )