diff --git a/datalad_registry/models.py b/datalad_registry/models.py
index a6127fc0..8827a3d3 100644
--- a/datalad_registry/models.py
+++ b/datalad_registry/models.py
@@ -98,9 +98,9 @@ class URLMetadata(db.Model):  # type: ignore
     # Extractor and extraction parameters
     extractor_name = db.Column(db.String(100), nullable=False)
     extractor_version = db.Column(db.String(60), nullable=False)
-    extraction_parameter = db.Column(db.JSON, nullable=False)
+    extraction_parameter = db.Column(JSONB, nullable=False)
 
-    extracted_metadata = db.Column(db.JSON, nullable=False)
+    extracted_metadata = db.Column(JSONB, nullable=False)
 
     # The ID of the associated RepoUrl
     url_id = db.Column(db.Integer, db.ForeignKey("repo_url.id"), nullable=False)
diff --git a/migrations/versions/029941610de0_change_all_json_columns_to_jsonb.py b/migrations/versions/029941610de0_change_all_json_columns_to_jsonb.py
new file mode 100644
index 00000000..3d7d64ac
--- /dev/null
+++ b/migrations/versions/029941610de0_change_all_json_columns_to_jsonb.py
@@ -0,0 +1,48 @@
+"""Change all JSON columns to JSONB
+
+Revision ID: 029941610de0
+Revises: e35239d06d44
+Create Date: 2024-02-23 06:24:15.776236
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = "029941610de0"
+down_revision = "e35239d06d44"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    with op.batch_alter_table("url_metadata", schema=None) as batch_op:
+        batch_op.alter_column(
+            "extraction_parameter",
+            existing_type=postgresql.JSON(astext_type=sa.Text()),
+            type_=postgresql.JSONB(astext_type=sa.Text()),
+            existing_nullable=False,
+        )
+        batch_op.alter_column(
+            "extracted_metadata",
+            existing_type=postgresql.JSON(astext_type=sa.Text()),
+            type_=postgresql.JSONB(astext_type=sa.Text()),
+            existing_nullable=False,
+        )
+
+
+def downgrade():
+    with op.batch_alter_table("url_metadata", schema=None) as batch_op:
+        batch_op.alter_column(
+            "extracted_metadata",
+            existing_type=postgresql.JSONB(astext_type=sa.Text()),
+            type_=postgresql.JSON(astext_type=sa.Text()),
+            existing_nullable=False,
+        )
+        batch_op.alter_column(
+            "extraction_parameter",
+            existing_type=postgresql.JSONB(astext_type=sa.Text()),
+            type_=postgresql.JSON(astext_type=sa.Text()),
+            existing_nullable=False,
+        )