diff --git a/migrations/versions/f2f57cb2a5b0_add_index_on_access_token.py b/migrations/versions/f2f57cb2a5b0_add_index_on_access_token.py
new file mode 100644
index 0000000..74ec818
--- /dev/null
+++ b/migrations/versions/f2f57cb2a5b0_add_index_on_access_token.py
@@ -0,0 +1,34 @@
+"""Add index on access token
+
+Revision ID: f2f57cb2a5b0
+Revises: cb232e6e9425
+Create Date: 2025-02-24 21:33:31.076672
+
+"""
+
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision: str = "f2f57cb2a5b0"
+down_revision: Union[str, None] = "fc5e2283de94"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint("oauth2token_access_token_key", "oauth2token", type_="unique")
+    op.create_index(
+        op.f("ix_oauth2token_access_token"), "oauth2token", ["access_token"], unique=True
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f("ix_oauth2token_access_token"), table_name="oauth2token")
+    op.create_unique_constraint("oauth2token_access_token_key", "oauth2token", ["access_token"])
+    # ### end Alembic commands ###