diff --git a/pyproject.toml b/pyproject.toml
index b95efe2c..2a7d8476 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "mavedb"
-version = "2024.4.2"
+version = "2024.4.3"
 description = "API for MaveDB, the database of Multiplexed Assays of Variant Effect."
 license = "AGPL-3.0-only"
 readme = "README.md"
diff --git a/src/mavedb/__init__.py b/src/mavedb/__init__.py
index b54c8e43..e01dd0ef 100644
--- a/src/mavedb/__init__.py
+++ b/src/mavedb/__init__.py
@@ -6,6 +6,6 @@
 logger = module_logging.getLogger(__name__)
 
 __project__ = "mavedb-api"
-__version__ = "2024.4.2"
+__version__ = "2024.4.3"
 
 logger.info(f"MaveDB {__version__}")
diff --git a/src/mavedb/scripts/populate_mapped_variants.py b/src/mavedb/scripts/populate_mapped_variants.py
index 8df46f3d..d1adbd42 100644
--- a/src/mavedb/scripts/populate_mapped_variants.py
+++ b/src/mavedb/scripts/populate_mapped_variants.py
@@ -66,7 +66,11 @@ def populate_mapped_variant_data(db: Session, urns: Sequence[Optional[str]], all
 
         try:
             existing_mapped_variants = (
-                db.query(MappedVariant).join(Variant).join(ScoreSet).filter(MappedVariant.current.is_(True)).all()
+                db.query(MappedVariant)
+                .join(Variant)
+                .join(ScoreSet)
+                .filter(ScoreSet.id == ss_id, MappedVariant.current.is_(True))
+                .all()
             )
 
             for variant in existing_mapped_variants: