diff --git a/art/estimators/object_tracking/pytorch_goturn.py b/art/estimators/object_tracking/pytorch_goturn.py
index f4a2129d72..fced75e896 100644
--- a/art/estimators/object_tracking/pytorch_goturn.py
+++ b/art/estimators/object_tracking/pytorch_goturn.py
@@ -796,7 +796,7 @@ def track(self, img_files: list[str], box: np.ndarray, visualize: bool = False)
         for i_f, img_file in enumerate(img_files):
             image = Image.open(img_file)
             if not image.mode == "RGB":
-                image = image.convert("RGB")
+                image = image.convert("RGB")  # type: ignore
 
             start_time = time.time()
             if i_f == 0:
diff --git a/requirements_test.txt b/requirements_test.txt
index c9f2d17734..3ffa7c8812 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -5,7 +5,7 @@ scipy==1.10.1
 matplotlib==3.7.1
 scikit-learn==1.4.1.post1
 six==1.17.0
-Pillow==10.3.0
+Pillow==11.0.0
 tqdm==4.67.1
 statsmodels==0.14.2
 pydub==0.25.1