diff --git a/alembic/versions/20260526_091726_0c555bea9437_add_em_dense_reconstruction_dataset_.py b/alembic/versions/20260526_091726_0c555bea9437_add_em_dense_reconstruction_dataset_.py
new file mode 100644
index 00000000..e2161e50
--- /dev/null
+++ b/alembic/versions/20260526_091726_0c555bea9437_add_em_dense_reconstruction_dataset_.py
@@ -0,0 +1,67 @@
+"""Add em_dense_reconstruction_dataset_cell_morphology derivation
+
+Revision ID: 0c555bea9437
+Revises: 1df0fd1302f9
+Create Date: 2026-05-26 09:17:26.248765
+
+"""
+
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+from alembic_postgresql_enum import TableReference
+
+from sqlalchemy import Text
+import app.db.types
+
+# revision identifiers, used by Alembic.
+revision: str = "0c555bea9437"
+down_revision: Union[str, None] = "1df0fd1302f9"
+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.sync_enum_values(
+        enum_schema="public",
+        enum_name="derivationtype",
+        new_values=[
+            "circuit_customization",
+            "circuit_extraction",
+            "circuit_rewiring",
+            "emodel_circuit",
+            "em_dense_reconstruction_dataset_cell_morphology",
+            "unspecified",
+        ],
+        affected_columns=[
+            TableReference(
+                table_schema="public", table_name="derivation", column_name="derivation_type"
+            )
+        ],
+        enum_values_to_rename=[],
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.sync_enum_values(
+        enum_schema="public",
+        enum_name="derivationtype",
+        new_values=[
+            "circuit_customization",
+            "circuit_extraction",
+            "circuit_rewiring",
+            "emodel_circuit",
+            "unspecified",
+        ],
+        affected_columns=[
+            TableReference(
+                table_schema="public", table_name="derivation", column_name="derivation_type"
+            )
+        ],
+        enum_values_to_rename=[],
+    )
+    # ### end Alembic commands ###
diff --git a/app/db/types.py b/app/db/types.py
index b1aca1f5..cd801202 100644
--- a/app/db/types.py
+++ b/app/db/types.py
@@ -271,6 +271,7 @@ class DerivationType(StrEnum):
     circuit_extraction = auto()
     circuit_rewiring = auto()
     emodel_circuit = auto()
+    em_dense_reconstruction_dataset_cell_morphology = auto()
     unspecified = auto()
 
 
diff --git a/scripts/export/build_database_archive.sh b/scripts/export/build_database_archive.sh
index d7394e48..5d84cc76 100755
--- a/scripts/export/build_database_archive.sh
+++ b/scripts/export/build_database_archive.sh
@@ -2,7 +2,7 @@
 # Automatically generated, do not edit!
 set -euo pipefail
 SCRIPT_VERSION="1"
-SCRIPT_DB_VERSION="1df0fd1302f9"
+SCRIPT_DB_VERSION="0c555bea9437"
 echo "DB dump (version $SCRIPT_VERSION for db version $SCRIPT_DB_VERSION)"
 
 
@@ -271,7 +271,7 @@ install -m 755 /dev/stdin "$WORK_DIR/load.sh" <<'EOF_LOAD_SCRIPT'
 # Automatically generated, do not edit!
 set -euo pipefail
 SCRIPT_VERSION="1"
-SCRIPT_DB_VERSION="1df0fd1302f9"
+SCRIPT_DB_VERSION="0c555bea9437"
 echo "DB load (version $SCRIPT_VERSION for db version $SCRIPT_DB_VERSION)"