diff --git a/backend/migrations/20230720092702_instance_groups.up.sql b/backend/migrations/20230720092702_instance_groups.up.sql
index 7d961b99ab..f9b93c6083 100644
--- a/backend/migrations/20230720092702_instance_groups.up.sql
+++ b/backend/migrations/20230720092702_instance_groups.up.sql
@@ -1,8 +1,3 @@
 -- Add up migration script here
-CREATE TABLE instance_group (name VARCHAR(255) PRIMARY KEY, summary VARCHAR(2000));
-CREATE TABLE email_to_igroup (email VARCHAR(255), igroup VARCHAR(255) NOT NULL, PRIMARY KEY (email, igroup));
-
-GRANT ALL PRIVILEGES ON TABLE instance_group TO windmill_admin;
-GRANT ALL PRIVILEGES ON TABLE instance_group TO windmill_user;
-GRANT ALL PRIVILEGES ON TABLE email_to_igroup TO windmill_admin;
-GRANT ALL PRIVILEGES ON TABLE email_to_igroup TO windmill_user;
\ No newline at end of file
+CREATE TABLE instance_group (name VARCHAR(255) PRIMARY KEY, summary VARCHAR(2000), external_id VARCHAR(1000));
+CREATE TABLE email_to_igroup (email VARCHAR(255), igroup VARCHAR(255), PRIMARY KEY (email, igroup));
\ No newline at end of file
diff --git a/backend/migrations/20230723101321_instance_groups_fix.down.sql b/backend/migrations/20230723101321_instance_groups_fix.down.sql
new file mode 100644
index 0000000000..d2f607c5b8
--- /dev/null
+++ b/backend/migrations/20230723101321_instance_groups_fix.down.sql
@@ -0,0 +1 @@
+-- Add down migration script here
diff --git a/backend/migrations/20230723101321_instance_groups_fix.up.sql b/backend/migrations/20230723101321_instance_groups_fix.up.sql
new file mode 100644
index 0000000000..07b5757400
--- /dev/null
+++ b/backend/migrations/20230723101321_instance_groups_fix.up.sql
@@ -0,0 +1,5 @@
+-- Add up migration script here
+GRANT ALL PRIVILEGES ON TABLE instance_group TO windmill_admin;
+GRANT ALL PRIVILEGES ON TABLE instance_group TO windmill_user;
+GRANT ALL PRIVILEGES ON TABLE email_to_igroup TO windmill_admin;
+GRANT ALL PRIVILEGES ON TABLE email_to_igroup TO windmill_user;
\ No newline at end of file
diff --git a/backend/overwrite_migrations.py b/backend/overwrite_migrations.py
index f4e8df6771..ccda8cf789 100644
--- a/backend/overwrite_migrations.py
+++ b/backend/overwrite_migrations.py
@@ -14,11 +14,15 @@ for f in os.listdir("migrations"):
     if f.endswith(".up.sql"):
         version = f.split("_")[0]
         cmd = f"cat migrations/{f} | openssl dgst -sha384 | cut -d ' ' -f 2"
-        ps = subprocess.Popen(cmd,shell=True,stdout=subprocess.PIPE,stderr=subprocess.STDOUT)
+        ps = subprocess.Popen(
+            cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT
+        )
         digest = ps.communicate()[0].decode("utf-8").strip()
 
         cmd = f"psql '{database_url}' -c \"UPDATE _sqlx_migrations SET checksum = '\\x{digest}' WHERE version = {version};\""
-        ps = subprocess.Popen(cmd,shell=True,stdout=subprocess.PIPE,stderr=subprocess.STDOUT)
+        ps = subprocess.Popen(
+            cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT
+        )
         out = ps.communicate()[0].decode("utf-8").strip()
+        print(f, cmd)
         print(version, digest, out)
-