diff --git a/alembic/versions/cfab6c8243cb_add_environment_creator_role.py b/alembic/versions/cfab6c8243cb_add_environment_creator_role.py
index 7c548831..1ab23aee 100644
--- a/alembic/versions/cfab6c8243cb_add_environment_creator_role.py
+++ b/alembic/versions/cfab6c8243cb_add_environment_creator_role.py
@@ -10,21 +10,51 @@ import sqlalchemy as sa
 from sqlalchemy.dialects import postgresql
 
 # revision identifiers, used by Alembic.
-revision = 'cfab6c8243cb' # pragma: allowlist secret
-down_revision = 'f03333c42bdb'
+revision = "cfab6c8243cb"  # pragma: allowlist secret
+down_revision = "f03333c42bdb"  # pragma: allowlist secret
 branch_labels = None
 depends_on = None
 
 
 def upgrade():
     # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('environments', sa.Column('creator_id', postgresql.UUID(as_uuid=True), nullable=False))
-    op.create_foreign_key("fk_users_id", 'environments', 'users', ['creator_id'], ['id'])
+    op.add_column(
+        "environments",
+        sa.Column("creator_id", postgresql.UUID(as_uuid=True), nullable=True),
+    )
+    op.create_foreign_key(
+        "fk_users_id", "environments", "users", ["creator_id"], ["id"]
+    )
     # ### end Alembic commands ###
 
+    # Default environment's creator id to the portfolio POC
+    conn = op.get_bind()
+    results = conn.execute(
+        """
+        SELECT
+            DISTINCT ON (e.id) e.id as id, pr.user_id as user_id
+        FROM environments e
+            JOIN applications a ON e.application_id = a.id
+            JOIN portfolios p ON a.portfolio_id = p.id
+            JOIN portfolio_roles pr ON pr.portfolio_id = p.id
+            JOIN portfolio_roles_permission_sets prps ON prps.portfolio_role_id = pr.id
+            JOIN permission_sets ps ON prps.permission_set_id = ps.id
+        WHERE ps.name = 'portfolio_poc'
+        ORDER BY e.id;
+        """
+    ).fetchall()
+
+    for r in results:
+        conn.execute(
+            "UPDATE environments e SET creator_id = %s WHERE e.id = %s",
+            [r["user_id"], r["id"]],
+        )
+
+    op.alter_column("environments", "creator_id", nullable=False)
+
 
 def downgrade():
     # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_constraint("fk_users_id", 'environments', type_='foreignkey')
-    op.drop_column('environments', 'creator_id')
+    op.drop_constraint("fk_users_id", "environments", type_="foreignkey")
+    op.drop_column("environments", "creator_id")
     # ### end Alembic commands ###