diff --git a/redbot/core/events.py b/redbot/core/events.py
index edf994c08..8d47c5cf9 100644
--- a/redbot/core/events.py
+++ b/redbot/core/events.py
@@ -119,7 +119,7 @@ def init_events(bot, cli_flags):
                 if expected_version(current_python, py_version_req):
                     installed_extras = []
                     for extra, reqs in red_pkg._dep_map.items():
-                        if extra is None:
+                        if extra is None or extra in {"dev", "all"}:
                             continue
                         try:
                             pkg_resources.require(req.name for req in reqs)
diff --git a/setup.cfg b/setup.cfg
index 51a6c75b8..1a5d3313c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -111,6 +111,13 @@ test =
     six==1.15.0
     toml==0.10.1
     wrapt==1.12.1
+all =
+    %(postgres)s
+dev =
+    %(all)s
+    %(docs)s
+    %(style)s
+    %(test)s
 
 [options.entry_points]
 console_scripts =
diff --git a/tools/dev-requirements.txt b/tools/dev-requirements.txt
index c2422e23d..962b6480a 100644
--- a/tools/dev-requirements.txt
+++ b/tools/dev-requirements.txt
@@ -1,3 +1,3 @@
 packaging
 tox
--e .[docs,postgres,style,test]
+-e .[dev]