diff --git a/common/alembic/versions/003_fix_user_id_text.py b/common/alembic/versions/003_fix_user_id_text.py
new file mode 100644
index 0000000..c88de0a
--- /dev/null
+++ b/common/alembic/versions/003_fix_user_id_text.py
@@ -0,0 +1,61 @@
+"""Change users.id and user_id FKs from uuid to text.
+
+Revision ID: 003_fix_user_id_text
+Revises:
+Create Date: 2026-03-31
+"""
+
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+
+revision: str = "003_fix_user_id_text"
+down_revision: Union[str, None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # Drop FK constraints first
+    op.execute("ALTER TABLE user_store_accounts DROP CONSTRAINT IF EXISTS user_store_accounts_user_id_fkey")
+    op.execute("ALTER TABLE purchases DROP CONSTRAINT IF EXISTS purchases_user_id_fkey")
+
+    # Alter users.id from uuid to text
+    op.execute("ALTER TABLE users ALTER COLUMN id TYPE text USING id::text")
+
+    # Alter user_id columns from uuid to text
+    op.execute("ALTER TABLE user_store_accounts ALTER COLUMN user_id TYPE text USING user_id::text")
+    op.execute("ALTER TABLE purchases ALTER COLUMN user_id TYPE text USING user_id::text")
+
+    # Re-add FK constraints
+    op.execute(
+        "ALTER TABLE user_store_accounts ADD CONSTRAINT user_store_accounts_user_id_fkey "
+        "FOREIGN KEY (user_id) REFERENCES users(id)"
+    )
+    op.execute(
+        "ALTER TABLE purchases ADD CONSTRAINT purchases_user_id_fkey "
+        "FOREIGN KEY (user_id) REFERENCES users(id)"
+    )
+
+
+def downgrade() -> None:
+    # Drop FK constraints
+    op.execute("ALTER TABLE user_store_accounts DROP CONSTRAINT IF EXISTS user_store_accounts_user_id_fkey")
+    op.execute("ALTER TABLE purchases DROP CONSTRAINT IF EXISTS purchases_user_id_fkey")
+
+    # Alter back to uuid
+    op.execute("ALTER TABLE users ALTER COLUMN id TYPE uuid USING id::uuid")
+    op.execute("ALTER TABLE user_store_accounts ALTER COLUMN user_id TYPE uuid USING user_id::uuid")
+    op.execute("ALTER TABLE purchases ALTER COLUMN user_id TYPE uuid USING user_id::uuid")
+
+    # Re-add FK constraints
+    op.execute(
+        "ALTER TABLE user_store_accounts ADD CONSTRAINT user_store_accounts_user_id_fkey "
+        "FOREIGN KEY (user_id) REFERENCES users(id)"
+    )
+    op.execute(
+        "ALTER TABLE purchases ADD CONSTRAINT purchases_user_id_fkey "
+        "FOREIGN KEY (user_id) REFERENCES users(id)"
+    )