diff --git a/README.md b/README.md
index d69c043..df74299 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,8 @@ LINKA is an open source service to record air quality data from community sensor
 
 ## Install
 
+Python 3.12 is not yet supported
+
 ```
 $ sudo dnf install python3-virtualenv python-devel libpq-devel
 $ virtualenv env
diff --git a/app/models.py b/app/models.py
index 9643af1..841d57e 100644
--- a/app/models.py
+++ b/app/models.py
@@ -127,7 +127,7 @@ async def stats(db, query):
                 ]
             )
 
-        select = sqlalchemy.select(measurements_stats)
+        select = sqlalchemy.select(*measurements_stats)
         select = select.group_by(
             measurements.c.sensor,
             measurements.c.source,
@@ -166,8 +166,9 @@ async def create_new_key(db: Database, provider: str) -> str:
     @staticmethod
     async def get_providers(db: Database) -> List[Tuple[str, int]]:
         query = sqlalchemy.select(
-            [providers.c.provider, sqlalchemy.func.count(providers.c.provider)]
-        ).group_by(providers.c.provider)
+            providers.c.provider, sqlalchemy.func.count(providers.c.provider)
+        )
+        query = query.group_by(providers.c.provider)
         query = query.order_by(sqlalchemy.asc(providers.c.provider))
         return await db.fetch_all(query)
 
@@ -187,14 +188,14 @@ async def revoke_all_keys(db: Database, provider: str) -> bool:
 
     @staticmethod
     async def get_all_keys(db: Database) -> Set[str]:
-        query = sqlalchemy.select([providers.c.api_key_hash])
+        query = sqlalchemy.select(providers.c.api_key_hash)
         query = query.order_by(sqlalchemy.asc(providers.c.provider))
         keys = await db.fetch_all(query)
         return {k[0] for k in keys}
 
     @staticmethod
     async def get_provider_for_key(db: Database, api_key_hash: str) -> Union[str, None]:
-        query = sqlalchemy.select([providers.c.id, providers.c.api_key_hash])
+        query = sqlalchemy.select(providers.c.id, providers.c.api_key_hash)
         query = query.where(providers.c.api_key_hash == api_key_hash)
         provider = await db.fetch_one(query)
         return provider[0] if provider else None
diff --git a/app/service.py b/app/service.py
index 08178fd..ebb4bac 100644
--- a/app/service.py
+++ b/app/service.py
@@ -13,6 +13,7 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+from contextlib import asynccontextmanager
 from fastapi import FastAPI, Depends
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.security.api_key import APIKey
@@ -25,7 +26,14 @@
 from .authentication import validate_api_key, validate_master_key
 
 
-app = FastAPI()
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    await db.connect()
+    yield
+    await db.disconnect()
+
+
+app = FastAPI(lifespan=lifespan)
 app.add_middleware(
     CORSMiddleware,
     allow_origins=["*"],
@@ -35,16 +43,6 @@
 )
 
 
-@app.on_event("startup")
-async def startup():
-    await db.connect()
-
-
-@app.on_event("shutdown")
-async def shutdown():
-    await db.disconnect()
-
-
 @app.post("/api/v1/providers", response_model=schemas.APIKey)
 async def create_provider(
     provider: schemas.Provider, key: APIKey = Depends(validate_master_key)
diff --git a/requirements.txt b/requirements.txt
index 05c1055..9bfc90e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-fastapi==0.94.1
+fastapi==0.114.1
 httpx==0.23.3
 uvicorn==0.21.0
 gunicorn==20.1.0
@@ -13,4 +13,5 @@ asyncpg==0.27.0
 psycopg2-binary==2.9.5
 alembic==1.10.2
 geopy==2.3.0
-pytest-dependency==0.5.1
\ No newline at end of file
+pytest-dependency==0.5.1
+
diff --git a/tests/service.py b/tests/service.py
index 845298c..afc35fa 100644
--- a/tests/service.py
+++ b/tests/service.py
@@ -322,7 +322,7 @@ def test_delete_provider(client):
 @pytest.mark.dependency(depends=["test_delete_provider"])
 def test_empty_measurements(client):
     query = {
-        "start": "1984-04-24T00:00:00",
+        "start": "2984-04-24T00:00:00",
     }
 
     response = client.get(f"/api/v1/measurements?{urlencode(query)}")