diff --git a/alembic/versions/a10d68643476_change_classified_traces_primary_key_to_.py b/alembic/versions/a10d68643476_change_classified_traces_primary_key_to_.py
new file mode 100644
index 0000000..45bf398
--- /dev/null
+++ b/alembic/versions/a10d68643476_change_classified_traces_primary_key_to_.py
@@ -0,0 +1,35 @@
+"""Change classified traces primary key to include block number
+
+Revision ID: a10d68643476
+Revises: 3417f49d97b3
+Create Date: 2021-11-02 22:03:26.312317
+
+"""
+from alembic import op
+
+
+# revision identifiers, used by Alembic.
+revision = "a10d68643476"
+down_revision = "3417f49d97b3"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.execute("ALTER TABLE classified_traces DROP CONSTRAINT classified_traces_pkey")
+    op.create_primary_key(
+        "classified_traces_pkey",
+        "classified_traces",
+        ["block_number", "transaction_hash", "trace_address"],
+    )
+    op.drop_index("i_block_number")
+
+
+def downgrade():
+    op.execute("ALTER TABLE classified_traces DROP CONSTRAINT classified_traces_pkey")
+    op.create_index("i_block_number", "classified_traces", ["block_number"])
+    op.create_primary_key(
+        "classified_traces_pkey",
+        "classified_traces",
+        ["transaction_hash", "trace_address"],
+    )