diff --git a/bot/setup.py b/bot/setup.py
index e8b5e363dcc5752f7456babaa41cd0215ca27d5d..5d25045e8fad4a2d5053065b748e3a8e087c4db1 100755
--- a/bot/setup.py
+++ b/bot/setup.py
@@ -105,27 +105,8 @@ setup(
     },
     install_requires=[
         'appdirs>=1.4.4',
-        'celery>=3.1.25,<4.0; python_version == "2.7"',
-        'celery>=5.1.2,<=5.1.999; python_version == "3.6"',
-        'celery>=5.2.7,<=5.2.999; python_version >= "3.7"',
-
-        # importlib-metadata >= 5.0 on Celery 5.2.x breaks the celery.Celery
-        # import. See https://github.com/celery/celery/issues/7783
-        'importlib-metadata<=4.999; python_version == "3.7"',
-
-        # We have to cap kombu for Python 3.6, as celery 5.1.x covers too
-        # broad a range of versions, resulting in a Python 3.6-incompatible
-        # kombu to be installed.
-        #
-        # Kombu 5.3 also drops Python 3.7 support.
-        'kombu>=5.1.0,<=5.1.999; python_version == "3.6"',
-        'kombu>=5.1.0,<=5.2.999; python_version == "3.7"',
-
-        'enum; python_version == "2.7"',
-
-        # RBTools 4.0 drops Python 2.7 and 3.6.
-        'RBTools>=3.0,<=3.999; python_version < "3.7"',
-        'RBTools>=4.0; python_version >= "3.7"',
+        'celery~=5.3',
+        'RBTools~=4.0',
 
         # We unconditionally include these plugins to ensure they're present.
         'flake8-json>=21.1',