diff --git a/django/utils/deprecation.py b/django/utils/deprecation.py
index 1cb1df105c..8c7dd050fb 100644
--- a/django/utils/deprecation.py
+++ b/django/utils/deprecation.py
@@ -2,14 +2,17 @@ import inspect
 import warnings
 
 
-class RemovedInDjango30Warning(PendingDeprecationWarning):
+class RemovedInDjango30Warning(DeprecationWarning):
     pass
 
 
-class RemovedInNextVersionWarning(DeprecationWarning):
+class RemovedInDjango31Warning(PendingDeprecationWarning):
     pass
 
 
+RemovedInNextVersionWarning = RemovedInDjango30Warning
+
+
 class warn_about_renamed_method:
     def __init__(self, class_name, old_method_name, new_method_name, deprecation_warning):
         self.class_name = class_name
diff --git a/docs/internals/deprecation.txt b/docs/internals/deprecation.txt
index 99a16f50fd..3a72ea43ca 100644
--- a/docs/internals/deprecation.txt
+++ b/docs/internals/deprecation.txt
@@ -7,6 +7,14 @@ in a backward incompatible way, following their deprecation, as per the
 :ref:`deprecation policy <internal-release-deprecation-policy>`. More details
 about each item can often be found in the release notes of two versions prior.
 
+.. _deprecation-removed-in-3.1:
+
+3.1
+---
+
+See the :ref:`Django 2.2 release notes <deprecated-features-2.2>` for more
+details on these changes.
+
 .. _deprecation-removed-in-3.0:
 
 3.0
diff --git a/tests/runtests.py b/tests/runtests.py
index b1baf8d31e..9d67a15a94 100755
--- a/tests/runtests.py
+++ b/tests/runtests.py
@@ -17,7 +17,9 @@ from django.test import TestCase, TransactionTestCase
 from django.test.runner import default_test_processes
 from django.test.selenium import SeleniumTestCaseBase
 from django.test.utils import get_runner
-from django.utils.deprecation import RemovedInDjango30Warning
+from django.utils.deprecation import (
+    RemovedInDjango30Warning, RemovedInDjango31Warning,
+)
 from django.utils.log import DEFAULT_LOGGING
 
 try:
@@ -30,6 +32,7 @@ else:
 
 # Make deprecation warnings errors to ensure no usage of deprecated features.
 warnings.simplefilter("error", RemovedInDjango30Warning)
+warnings.simplefilter('error', RemovedInDjango31Warning)
 # Make runtime warning errors to ensure no usage of error prone patterns.
 warnings.simplefilter("error", RuntimeWarning)
 # Ignore known warnings in test dependencies.