diff --git a/Makefile.local b/Makefile.local
--- a/Makefile.local
+++ b/Makefile.local
@@ -16,7 +16,7 @@
 
 .PHONY: run-wsgi
 run-wsgi:
-	export SWH_CONFIG_FILENAME=config/staging.yml; gunicorn --workers=2 'swh.graphql.server:make_app_from_configfile()'
+	export SWH_CONFIG_FILENAME=config/staging.yml; gunicorn 'swh.graphql.server:make_app_from_configfile()' -w 2 -k uvicorn.workers.UvicornWorker
 
 .PHONY: run-dev-docker
 run-dev-docker:
diff --git a/config/staging.yml b/config/staging.yml
--- a/config/staging.yml
+++ b/config/staging.yml
@@ -8,4 +8,4 @@
 
 debug: no
 
-server-type: wsgi
+server-type: asgi
diff --git a/docker-compose-staging.yml b/docker-compose-staging.yml
--- a/docker-compose-staging.yml
+++ b/docker-compose-staging.yml
@@ -5,4 +5,4 @@
     dns: 192.168.100.29
     environment:
       - SWH_CONFIG_FILENAME=config/staging.yml
-    command: gunicorn --bind=0.0.0.0:8000 --workers=2 'swh.graphql.server:make_app_from_configfile()'
+    command: gunicorn --bind=0.0.0.0:8000 -w 2 -k uvicorn.workers.UvicornWorker 'swh.graphql.server:make_app_from_configfile()'
diff --git a/swh/graphql/server.py b/swh/graphql/server.py
--- a/swh/graphql/server.py
+++ b/swh/graphql/server.py
@@ -62,6 +62,8 @@
     SWH_CONFIG_FILENAME environment variable defines the
     configuration path to load.
     """
+    from starlette.middleware.cors import CORSMiddleware
+
     from .app import schema
     from .errors.handlers import format_error
 
@@ -74,18 +76,11 @@
     server_type = graphql_cfg.get("server-type")
     if server_type == "asgi":
         from ariadne.asgi import GraphQL
-        from starlette.middleware.cors import CORSMiddleware
 
-        # Enable cors in the asgi version
         application = CORSMiddleware(
             GraphQL(schema, debug=graphql_cfg["debug"], error_formatter=format_error),
+            # FIXME, restrict origins after deploying the JS client
             allow_origins=["*"],
             allow_methods=("GET", "POST", "OPTIONS"),
         )
-    else:
-        from ariadne.wsgi import GraphQL
-
-        application = GraphQL(
-            schema, debug=graphql_cfg["debug"], error_formatter=format_error
-        )
     return application