diff --git a/OmopTransformer/ConceptMapper.cs b/OmopTransformer/ConceptMapper.cs
index e0a8333..04fae09 100644
--- a/OmopTransformer/ConceptMapper.cs
+++ b/OmopTransformer/ConceptMapper.cs
@@ -24,6 +24,6 @@ public async Task RenderConceptMap(CancellationToken cancellationToken)
 
         await connection.OpenAsync(cancellationToken);
 
-        await connection.ExecuteAsync("omop_staging.generate_concept_code_map");
+        await connection.ExecuteLongTimeoutAsync("omop_staging.generate_concept_code_map");
     }
 }
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