diff --git a/pyproject.toml b/pyproject.toml
index c045fdf1..e833c274 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,7 @@ dependencies = [
   "sangaboard",
   "camera-stage-mapping ~= 0.1.10",
   "opencv-python ~= 4.11.0",
-  "openflexure-stitching[libvips]==0.1.0",
+  "openflexure-stitching[libvips]==0.2.0",
   "pillow ~= 10.4",
   "anyio ~= 4.0",
   "numpy ~= 2.2",
diff --git a/src/openflexure_microscope_server/stitching.py b/src/openflexure_microscope_server/stitching.py
index b88c4036..9ef7561f 100644
--- a/src/openflexure_microscope_server/stitching.py
+++ b/src/openflexure_microscope_server/stitching.py
@@ -19,6 +19,7 @@ from openflexure_microscope_server.utilities import make_path_safe
 
 STITCHING_CMD = "openflexure-stitch"
 STITCHING_RESOLUTION = (820, 616)
+STITCH_TILE_SIZE = 8192
 
 DEFAULT_OVERLAP = 0.1
 DEFAULT_RESIZE = 0.5
@@ -207,7 +208,12 @@ class FinalStitcher(BaseStitcher):
         self._mode = "all"
 
         tiff_arg = "--stitch_tiff" if stitch_tiff else "--no-stitch_tiff"
-        self._extra_args = ["--stitch_dzi", tiff_arg]
+        self._extra_args = [
+            "--stitch_dzi",
+            tiff_arg,
+            "--tile_size",
+            str(STITCH_TILE_SIZE),
+        ]
 
     def _process_inputs(
         self,
diff --git a/tests/test_stitching.py b/tests/test_stitching.py
index ef248b82..d4908340 100644
--- a/tests/test_stitching.py
+++ b/tests/test_stitching.py
@@ -78,6 +78,8 @@ FINAL_EXPECTED_COMMAND = [
     "all",
     "--stitch_dzi",
     "--no-stitch_tiff",
+    "--tile_size",
+    "8192",
     "--minimum_overlap",
     "0.09",
     "--resize",
@@ -117,8 +119,8 @@ def test_final_stitcher_command_set_val_directly():
     """Check that values are set as expected when directly input."""
     # Modify defaults
     expected_command = copy(FINAL_EXPECTED_COMMAND)
-    expected_command[6] = "0.36"
-    expected_command[8] = "0.25"
+    expected_command[8] = "0.36"
+    expected_command[10] = "0.25"
     # Test with no data dictionary, irrelevant data, and also the wrong data
     # When wrong data is submitted, it should take the directly input data.
     dict_vals = [
@@ -141,8 +143,8 @@ def test_final_stitcher_command_set_with_dict():
     """Check that values are set as expected when set from a ScanData dictionary."""
     # Modify defaults
     expected_command = copy(FINAL_EXPECTED_COMMAND)
-    expected_command[6] = "0.36"
-    expected_command[8] = "0.25"
+    expected_command[8] = "0.36"
+    expected_command[10] = "0.25"
     # Check same thing works with a dictionary, resize is calculated from the saved image
     # resolution. Make 4x bigger than STITCHING_RESOLUTION to get 0.25
     resolution = [dim * 4 for dim in STITCHING_RESOLUTION]