diff --git a/sanic_ext/config.py b/sanic_ext/config.py
index 2fb99eb..f410cb5 100644
--- a/sanic_ext/config.py
+++ b/sanic_ext/config.py
@@ -10,7 +10,7 @@
 from sanic.signals import Event
 
 
-PRIORITY = 100_000_000
+PRIORITY = -1_000
 
 
 class Config(SanicConfig):
diff --git a/sanic_ext/extensions/http/cors.py b/sanic_ext/extensions/http/cors.py
index 23e825f..3346945 100644
--- a/sanic_ext/extensions/http/cors.py
+++ b/sanic_ext/extensions/http/cors.py
@@ -10,6 +10,8 @@
 from sanic.helpers import Default, _default
 from sanic.log import logger
 
+from sanic_ext.config import PRIORITY
+
 
 WILDCARD_PATTERN = re.compile(r".*")
 ORIGIN_HEADER = "access-control-allow-origin"
@@ -67,7 +69,7 @@ async def _add_cors_headers(request, response):
             _add_allow_header(request, response)
             _add_methods_header(request, response)
 
-    @app.before_server_start
+    @app.before_server_start(priority=PRIORITY)
     async def _assign_cors_settings(app, _):
         for group in app.router.groups.values():
             _cors = SimpleNamespace()
diff --git a/sanic_ext/extensions/http/methods.py b/sanic_ext/extensions/http/methods.py
index e0fbf5d..8976e49 100644
--- a/sanic_ext/extensions/http/methods.py
+++ b/sanic_ext/extensions/http/methods.py
@@ -67,7 +67,7 @@ async def trace_handler(request):
         )
         return raw(message, content_type="message/http")
 
-    @app.before_server_start(priority=PRIORITY + 1)
+    @app.before_server_start(priority=PRIORITY)
     def _add_handlers(app, _):
         nonlocal auto_head
         nonlocal auto_options
diff --git a/sanic_ext/extensions/injection/injector.py b/sanic_ext/extensions/injection/injector.py
index 24ce171..224bb95 100644
--- a/sanic_ext/extensions/injection/injector.py
+++ b/sanic_ext/extensions/injection/injector.py
@@ -74,7 +74,7 @@ def _setup_signature_registry(
 ) -> SignatureRegistry:
     registry = SignatureRegistry()
 
-    @app.listener("before_server_start", priority=PRIORITY)
+    @app.listener("before_server_start", priority=PRIORITY - 1)
     async def setup_signatures(app, _):
         nonlocal registry
 
diff --git a/sanic_ext/extensions/openapi/blueprint.py b/sanic_ext/extensions/openapi/blueprint.py
index 19f61ba..c7cdbc6 100644
--- a/sanic_ext/extensions/openapi/blueprint.py
+++ b/sanic_ext/extensions/openapi/blueprint.py
@@ -9,6 +9,7 @@
 from sanic.log import logger
 from sanic.response import file, html, json
 
+from sanic_ext.config import PRIORITY
 from sanic_ext.extensions.openapi.builders import (
     OperationStore,
     SpecificationBuilder,
@@ -115,7 +116,7 @@ async def spec(request: Request):
         def openapi_config(request: Request):
             return json(request.app.config.SWAGGER_UI_CONFIGURATION)
 
-    @bp.before_server_start
+    @bp.before_server_start(priority=PRIORITY)
     def build_spec(app, loop):
         specification = SpecificationBuilder()
         # --------------------------------------------------------------- #