diff --git a/octomachinery/cli/__main__.py b/octomachinery/cli/__main__.py
index a9b0e69..83fffe3 100644
--- a/octomachinery/cli/__main__.py
+++ b/octomachinery/cli/__main__.py
@@ -121,6 +121,7 @@ async def _process_event_as_app(
     from ..app.runtime.context import RUNTIME_CONTEXT
     from ..app.config import BotAppConfig
     from ..github.api.app_client import GitHubApp
+    from aiohttp.client import ClientSession
     from aiohttp.web_request import Request
     config = BotAppConfig.from_dotenv()
     from aiohttp.http_parser import RawRequestMessage
@@ -148,11 +149,16 @@ class transp:
     async def read_coro():
         return json.dumps(event_data).encode()
     http_request.read = read_coro
-    async with GitHubApp(config.github) as github_app:
-        RUNTIME_CONTEXT.github_app = (  # pylint: disable=assigning-non-slot
-            github_app
-        )
-        await route_github_webhook_event(http_request)
+    async with ClientSession() as http_client_session:
+        async with GitHubApp(
+                config.github,
+                http_session=http_client_session,
+        ) as github_app:
+            # pylint: disable=assigning-non-slot
+            RUNTIME_CONTEXT.github_app = (
+                github_app
+            )
+            await route_github_webhook_event(http_request)
 
 
 def main():