diff --git a/tests/integrations/flask/test_flask.py b/tests/integrations/flask/test_flask.py
index 09b2c2fb30..3d3572e2d3 100644
--- a/tests/integrations/flask/test_flask.py
+++ b/tests/integrations/flask/test_flask.py
@@ -1,10 +1,9 @@
 import json
 import re
-import pytest
 import logging
-
 from io import BytesIO
 
+import pytest
 from flask import (
     Flask,
     Response,
@@ -14,9 +13,14 @@
     render_template_string,
 )
 from flask.views import View
-
 from flask_login import LoginManager, login_user
 
+try:
+    from werkzeug.wrappers.request import UnsupportedMediaType
+except ImportError:
+    UnsupportedMediaType = None
+
+import sentry_sdk.integrations.flask as flask_sentry
 from sentry_sdk import (
     set_tag,
     configure_scope,
@@ -26,7 +30,6 @@
     Hub,
 )
 from sentry_sdk.integrations.logging import LoggingIntegration
-import sentry_sdk.integrations.flask as flask_sentry
 from sentry_sdk.serializer import MAX_DATABAG_BREADTH
 
 
@@ -340,7 +343,11 @@ def test_flask_medium_formdata_request(sentry_init, capture_events, app):
     def index():
         assert request.form["foo"] == data["foo"]
         assert not request.get_data()
-        assert not request.get_json()
+        try:
+            assert not request.get_json()
+        except UnsupportedMediaType:
+            # flask/werkzeug 3
+            pass
         capture_message("hi")
         return "ok"
 
@@ -372,7 +379,11 @@ def index():
         assert request.form["username"] == data["username"]
         assert request.form["age"] == data["age"]
         assert not request.get_data()
-        assert not request.get_json()
+        try:
+            assert not request.get_json()
+        except UnsupportedMediaType:
+            # flask/werkzeug 3
+            pass
         set_tag("view", "yes")
         capture_message("hi")
         return "ok"
@@ -405,7 +416,11 @@ def index():
             assert request.get_data() == data
         else:
             assert request.get_data() == data.encode("ascii")
-        assert not request.get_json()
+        try:
+            assert not request.get_json()
+        except UnsupportedMediaType:
+            # flask/werkzeug 3
+            pass
         capture_message("hi")
         return "ok"
 
@@ -431,7 +446,11 @@ def test_flask_files_and_form(sentry_init, capture_events, app):
     def index():
         assert list(request.form) == ["foo"]
         assert list(request.files) == ["file"]
-        assert not request.get_json()
+        try:
+            assert not request.get_json()
+        except UnsupportedMediaType:
+            # flask/werkzeug 3
+            pass
         capture_message("hi")
         return "ok"
 
@@ -545,9 +564,12 @@ def test_cli_commands_raise(app):
     def foo():
         1 / 0
 
+    def create_app(*_):
+        return app
+
     with pytest.raises(ZeroDivisionError):
         app.cli.main(
-            args=["foo"], prog_name="myapp", obj=ScriptInfo(create_app=lambda _: app)
+            args=["foo"], prog_name="myapp", obj=ScriptInfo(create_app=create_app)
         )
 
 
diff --git a/tox.ini b/tox.ini
index 072b561b07..c38d60332c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -95,6 +95,7 @@ envlist =
     {py2.7,py3.5,py3.6,py3.7,py3.8,py3.9}-flask-v{0.11,0.12,1.0}
     {py2.7,py3.5,py3.6,py3.7,py3.8,py3.9,py3.10,py3.11}-flask-v{1.1}
     {py3.6,py3.8,py3.9,py3.10,py3.11,py3.12}-flask-v{2.0}
+    {py3.10,py3.11,py3.12}-flask-v{3.0}
 
     # Gevent
     {py2.7,py3.6,py3.7,py3.8,py3.9,py3.10,py3.11}-gevent
@@ -333,12 +334,14 @@ deps =
 
     # Flask
     flask: flask-login
-    flask: Werkzeug<2.1.0
+    flask-v{0.11,0.12,1.0,1.1,2.0}: Werkzeug<2.1.0
+    flask-v{3.0}: Werkzeug
     flask-v0.11: Flask>=0.11,<0.12
     flask-v0.12: Flask>=0.12,<0.13
     flask-v1.0: Flask>=1.0,<1.1
     flask-v1.1: Flask>=1.1,<1.2
     flask-v2.0: Flask>=2.0,<2.1
+    flask-v3.0: Flask>=3.0,<3.1
 
     # Gevent
     # See http://www.gevent.org/install.html#older-versions-of-python