diff --git a/colour_hdri/network/graphs.py b/colour_hdri/network/graphs.py
index 660c6bc..0a86c39 100644
--- a/colour_hdri/network/graphs.py
+++ b/colour_hdri/network/graphs.py
@@ -1013,8 +1013,8 @@ def process(self, **kwargs: Any) -> None:
             "output",
             list(
                 zip(
-                    self.nodes["ParallelForMultiprocess"].get_output("results"),
-                    self.nodes["GraphPostMergeHDRI"].get_output("output"),
+                    self.nodes["ParallelForMultiprocess"].get_output("results"),  # pyright: ignore
+                    self.nodes["GraphPostMergeHDRI"].get_output("output"),  # pyright: ignore
                     strict=False,
                 )
             ),
diff --git a/colour_hdri/network/nodes.py b/colour_hdri/network/nodes.py
index e8bb793..e3c3c05 100644
--- a/colour_hdri/network/nodes.py
+++ b/colour_hdri/network/nodes.py
@@ -1511,7 +1511,7 @@ def process(self, **kwargs: Any) -> None:  # noqa: ARG002
                 self.log(f'"{image_path}" image does not exist!')
                 return
 
-            median.append(np.median(read_image_OpenImageIO(image_path)))  # pyright: ignore
+            median.append(np.median(read_image_OpenImageIO(image_path)))
 
         normalising_factor = np.median(median)
 
diff --git a/colour_hdri/sampling/variance_minimization.py b/colour_hdri/sampling/variance_minimization.py
index 4152450..90c4059 100644
--- a/colour_hdri/sampling/variance_minimization.py
+++ b/colour_hdri/sampling/variance_minimization.py
@@ -265,7 +265,7 @@ def light_probe_sampling_variance_minimization_Viriyothai2009(
             Light_Specification(
                 (c / np.array(Y.shape))[::-1],
                 np.sum(np.sum(light_probe_c, 0), 0),
-                c,
+                c,  # pyright: ignore
             )
         )
 
diff --git a/colour_hdri/utilities/tests/test_image.py b/colour_hdri/utilities/tests/test_image.py
index ebe8ba6..3b313f3 100644
--- a/colour_hdri/utilities/tests/test_image.py
+++ b/colour_hdri/utilities/tests/test_image.py
@@ -91,7 +91,7 @@ def test_required_attributes(self) -> None:
         required_attributes = ("cctf_decoding",)
 
         for attribute in required_attributes:
-            assert attribute in dir(Image)
+            assert attribute in dir(ImageStack)
 
     def test_required_methods(self) -> None:
         """Test the presence of required methods."""