diff --git a/pipeline/transform/models/staging/stg_ofsted_inspections.sql b/pipeline/transform/models/staging/stg_ofsted_inspections.sql
index 9a22b65..100e6e1 100644
--- a/pipeline/transform/models/staging/stg_ofsted_inspections.sql
+++ b/pipeline/transform/models/staging/stg_ofsted_inspections.sql
@@ -36,7 +36,8 @@ renamed as (
         report_url
     from source
     where urn is not null
-      and inspection_date is not null
+      and nullif(trim(inspection_date), 'NULL') is not null
 )
 
 select * from renamed
+where inspection_date is not null