diff --git a/pyproject.toml b/pyproject.toml
index 5b0553b2e9..cf27a6f622 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ classifiers = [
 dependencies = [
   "arabic-reshaper==3.0.0",  # Support for Arabic in reportlab
   "babel",
-  "BeautifulSoup4==4.12.*",
+  "BeautifulSoup4==4.13.*",
   "bleach==6.2.*",
   "celery==5.4.*",
   "chardet==5.2.*",
diff --git a/src/pretix/base/services/mail.py b/src/pretix/base/services/mail.py
index fea30a174b..29f681bd49 100644
--- a/src/pretix/base/services/mail.py
+++ b/src/pretix/base/services/mail.py
@@ -674,7 +674,7 @@ def replace_images_with_cid_paths(body_html):
     if body_html:
         email = BeautifulSoup(body_html, "lxml")
         cid_images = []
-        for image in email.findAll('img'):
+        for image in email.find_all('img'):
             original_image_src = image['src']
 
             try:
diff --git a/src/tests/base/__init__.py b/src/tests/base/__init__.py
index 876313d8db..e0186bbc3b 100644
--- a/src/tests/base/__init__.py
+++ b/src/tests/base/__init__.py
@@ -74,7 +74,7 @@ def extract_form_fields(soup):
             continue
 
     # textareas
-    for textarea in soup.findAll('textarea'):
+    for textarea in soup.find_all('textarea'):
         if textarea['name'] in data:
             if not isinstance(data[textarea['name']], list):
                 data[textarea['name']] = [data[textarea['name']]]