diff --git a/alembic/versions/59709e421270_introduce_and_populate_userid_column_in_.py b/alembic/versions/59709e421270_introduce_and_populate_userid_column_in_.py
new file mode 100644
index 0000000..4affd0a
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+++ b/alembic/versions/59709e421270_introduce_and_populate_userid_column_in_.py
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+"""Introduce and populate userid column in bookmarks table
+
+Revision ID: 59709e421270
+Revises: 66d912f96db6
+Create Date: 2024-12-13 10:07:25.614981
+
+"""
+import os
+from alembic import op
+import sqlalchemy as sa
+
+qwc_config_schema = os.getenv("QWC_CONFIG_SCHEMA", "qwc_config")
+
+# revision identifiers, used by Alembic.
+revision = '59709e421270'
+down_revision = '66d912f96db6'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    sql = sa.sql.text("""
+        ALTER TABLE {schema}.user_bookmarks
+        ADD COLUMN user_id integer;
+    """.format(schema=qwc_config_schema))
+    conn = op.get_bind()
+    conn.execute(sql)
+
+    sql = sa.sql.text("""
+        UPDATE {schema}.user_bookmarks
+        SET user_id = users.id
+        FROM {schema}.users
+        WHERE user_bookmarks.username = users.name;
+    """.format(schema=qwc_config_schema))
+    conn = op.get_bind()
+    conn.execute(sql)
+
+
+def downgrade():
+    sql = sa.sql.text("""
+        ALTER TABLE {schema}.user_bookmarks
+        DROP COLUMN user_id;
+    """.format(schema=qwc_config_schema))
+    conn = op.get_bind()
+    conn.execute(sql)