diff --git a/CHANGELOG.md b/CHANGELOG.md
index a11bf7e..c6d7a0b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## 0.7
 
+### 0.7.1rc1
+
+- Fix postgres sql error (#263)
+
 ### 0.7.0
 
 **Now aerich use `.py` file to record versions.**
diff --git a/aerich/migrate.py b/aerich/migrate.py
index 616f976..c708e59 100644
--- a/aerich/migrate.py
+++ b/aerich/migrate.py
@@ -125,8 +125,8 @@ async def _generate_diff_py(cls, name):
 
         version_file = Path(cls.migrate_location, version)
         content = MIGRATE_TEMPLATE.format(
-            upgrade_sql=",\n        ".join(map(lambda x: f'"""{x}"""', cls.upgrade_operators)),
-            downgrade_sql=",\n        ".join(map(lambda x: f'"""{x}"""', cls.downgrade_operators)),
+            upgrade_sql=",\n        ".join(map(lambda x: f"'{x}'", cls.upgrade_operators)),
+            downgrade_sql=",\n        ".join(map(lambda x: f"'{x}'", cls.downgrade_operators)),
         )
         with open(version_file, "w", encoding="utf-8") as f:
             f.write(content)
diff --git a/aerich/version.py b/aerich/version.py
index 364e7ba..671a509 100644
--- a/aerich/version.py
+++ b/aerich/version.py
@@ -1 +1 @@
-__version__ = "0.6.4"
+__version__ = "0.7.1rc1"
diff --git a/pyproject.toml b/pyproject.toml
index 060cd36..fa3b3b4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "aerich"
-version = "0.7.0"
+version = "0.7.1rc1"
 description = "A database migrations tool for Tortoise ORM."
 authors = ["long2ice <long2ice@gmail.com>"]
 license = "Apache-2.0"