diff --git a/db/__init__.py b/db/__init__.py
index 1741487..96eaebb 100644
--- a/db/__init__.py
+++ b/db/__init__.py
@@ -2,7 +2,11 @@ from administrator.config import config
 from sqlalchemy import create_engine
 from sqlalchemy.orm import sessionmaker
 from sqlalchemy.ext.declarative import declarative_base
-engine = create_engine(config.get("db"))
+db = config.get("db")
+args = {"pool_pre_ping": True, "pool_recycle": 3600}
+if not db.startswith("sqlite:"):
+    args.update({"pool_size": 0, "max_overflow": -1})
+engine = create_engine(db, **args)
 Session = sessionmaker(bind=engine)
 Base = declarative_base()
 from db.Task import Task
diff --git a/extensions/rorec.py b/extensions/rorec.py
index 30f8419..add3718 100644
--- a/extensions/rorec.py
+++ b/extensions/rorec.py
@@ -87,6 +87,7 @@ class RoRec(commands.Cog):
         s = db.Session()
         s.add(r)
         s.commit()
+        s.close()
         await ctx.message.add_reaction("\U0001f44d")
 
     @rorec.group("edit", pass_context=True)