diff --git a/backend/capellacollab/core/database/__init__.py b/backend/capellacollab/core/database/__init__.py
index 0e7bc67fe..66fa4b116 100644
--- a/backend/capellacollab/core/database/__init__.py
+++ b/backend/capellacollab/core/database/__init__.py
@@ -15,6 +15,7 @@
 engine = sa.create_engine(
     config.database.url,
     connect_args={"connect_timeout": 5, "options": "-c timezone=utc"},
+    pool_size=20,
 )
 SessionLocal = orm.sessionmaker(autocommit=False, autoflush=False, bind=engine)