diff --git a/aerich/cli.py b/aerich/cli.py
index 4feb041..3a2f5cd 100644
--- a/aerich/cli.py
+++ b/aerich/cli.py
@@ -1,3 +1,4 @@
+import functools
 import json
 import os
 import sys
@@ -27,6 +28,16 @@ class Color(str, Enum):
 parser = ConfigParser()
 
 
+def close_db(func):
+    @functools.wraps(func)
+    async def close_db_inner(*args, **kwargs):
+        result = await func(*args, **kwargs)
+        await Tortoise.close_connections()
+        return result
+
+    return close_db_inner
+
+
 @click.group(context_settings={"help_option_names": ["-h", "--help"]})
 @click.version_option(__version__, "-V", "--version")
 @click.option(
@@ -70,6 +81,7 @@ async def cli(ctx: Context, config, app, name):
 @cli.command(help="Generate migrate changes file.")
 @click.option("--name", default="update", show_default=True, help="Migrate name.")
 @click.pass_context
+@close_db
 async def migrate(ctx: Context, name):
     config = ctx.obj["config"]
     location = ctx.obj["location"]
@@ -84,6 +96,7 @@ async def migrate(ctx: Context, name):
 
 @cli.command(help="Upgrade to latest version.")
 @click.pass_context
+@close_db
 async def upgrade(ctx: Context):
     config = ctx.obj["config"]
     app = ctx.obj["app"]
@@ -110,6 +123,7 @@ async def upgrade(ctx: Context):
 
 @cli.command(help="Downgrade to previous version.")
 @click.pass_context
+@close_db
 async def downgrade(ctx: Context):
     app = ctx.obj["app"]
     config = ctx.obj["config"]
@@ -132,6 +146,7 @@ async def downgrade(ctx: Context):
 
 @cli.command(help="Show current available heads in migrate location.")
 @click.pass_context
+@close_db
 async def heads(ctx: Context):
     app = ctx.obj["app"]
     versions = Migrate.get_all_version_files()
@@ -146,7 +161,8 @@ async def heads(ctx: Context):
 
 @cli.command(help="List all migrate items.")
 @click.pass_context
-def history(ctx):
+@close_db
+async def history(ctx: Context):
     versions = Migrate.get_all_version_files()
     for version in versions:
         click.secho(version, fg=Color.green)
@@ -196,6 +212,7 @@ async def init(
     show_default=True,
 )
 @click.pass_context
+@close_db
 async def init_db(ctx: Context, safe):
     config = ctx.obj["config"]
     location = ctx.obj["location"]