diff --git a/contentcuration/contentcuration/utils/files.py b/contentcuration/contentcuration/utils/files.py
index 217b6b3c3a..1d1125293a 100644
--- a/contentcuration/contentcuration/utils/files.py
+++ b/contentcuration/contentcuration/utils/files.py
@@ -117,7 +117,7 @@ def get_thumbnail_encoding(filename, dimension=THUMBNAIL_WIDTH):
             # aspect ratio. So a square image will remain square rather
             # than being distorted to a 16:9 aspect ratio. This removes
             # the need to make any changes like cropping the image.
-            image.thumbnail(thumbnail_size, Image.ANTIALIAS)
+            image.thumbnail(thumbnail_size, Image.LANCZOS)
 
             image.save(outbuffer, image_format)
         return "data:image/{};base64,{}".format(ext[1:], base64.b64encode(outbuffer.getvalue()).decode('utf-8'))
diff --git a/requirements.in b/requirements.in
index fbb8fadcca..9c57d59526 100644
--- a/requirements.in
+++ b/requirements.in
@@ -35,7 +35,7 @@ future
 sentry-sdk
 django-bulk-update
 html5lib==1.1
-pillow==9.4.0
+pillow==10.2.0
 python-dateutil>=2.8.1
 jsonschema>=3.2.0
 importlib-metadata==1.7.0
diff --git a/requirements.txt b/requirements.txt
index 65081fa4a3..a71f585370 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -178,7 +178,7 @@ packaging==20.9
     #   google-cloud-kms
 pathlib==1.0.1
     # via -r requirements.in
-pillow==9.4.0
+pillow==10.2.0
     # via -r requirements.in
 prometheus-client==0.10.1
     # via django-prometheus