diff --git a/test-requirements.txt b/test-requirements.txt
index 64a551c367..d4fafb53dc 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -2,7 +2,7 @@ hypothesis==3.69.9
 pytest==3.7.3
 pytest-xdist==1.23.0
 tox==3.7.0
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 pytest-localserver==0.4.1
 pytest-cov==2.6.0
 gevent
diff --git a/tests/integrations/django/test_basic.py b/tests/integrations/django/test_basic.py
index 9bb350ccde..49853f5427 100644
--- a/tests/integrations/django/test_basic.py
+++ b/tests/integrations/django/test_basic.py
@@ -56,7 +56,7 @@ def test_request_captured(sentry_init, client, capture_events):
     assert event["request"] == {
         "cookies": {},
         "env": {"SERVER_NAME": "localhost", "SERVER_PORT": "80"},
-        "headers": {"Content-Length": "0", "Content-Type": "", "Host": "localhost"},
+        "headers": {"Host": "localhost"},
         "method": "GET",
         "query_string": "",
         "url": "http://localhost/message",
@@ -135,7 +135,7 @@ def test_custom_error_handler_request_context(sentry_init, client, capture_event
     assert event["level"] == "error"
     assert event["request"] == {
         "env": {"SERVER_NAME": "localhost", "SERVER_PORT": "80"},
-        "headers": {"Content-Length": "0", "Content-Type": "", "Host": "localhost"},
+        "headers": {"Host": "localhost"},
         "method": "POST",
         "query_string": "",
         "url": "http://localhost/404",
diff --git a/tests/integrations/pyramid/test_pyramid.py b/tests/integrations/pyramid/test_pyramid.py
index e9aa5eaba3..dd2ee3d6f7 100644
--- a/tests/integrations/pyramid/test_pyramid.py
+++ b/tests/integrations/pyramid/test_pyramid.py
@@ -101,7 +101,7 @@ def hi2(request):
     assert event["message"] == "yoo"
     assert event["request"] == {
         "env": {"SERVER_NAME": "localhost", "SERVER_PORT": "80"},
-        "headers": {"Content-Length": "0", "Content-Type": "", "Host": "localhost"},
+        "headers": {"Host": "localhost"},
         "method": "GET",
         "query_string": "",
         "url": "http://localhost/message/yoo",
diff --git a/tests/integrations/wsgi/test_wsgi.py b/tests/integrations/wsgi/test_wsgi.py
index 101e29dfb5..8c920f4dab 100644
--- a/tests/integrations/wsgi/test_wsgi.py
+++ b/tests/integrations/wsgi/test_wsgi.py
@@ -49,7 +49,7 @@ def test_basic(sentry_init, crashing_app, capture_events):
 
     assert event["request"] == {
         "env": {"SERVER_NAME": "localhost", "SERVER_PORT": "80"},
-        "headers": {"Content-Length": "0", "Content-Type": "", "Host": "localhost"},
+        "headers": {"Host": "localhost"},
         "method": "GET",
         "query_string": "",
         "url": "http://localhost/",