diff --git a/grants/ispyb_processing.sql b/grants/ispyb_processing.sql
index b0ef015..918ae0a 100644
--- a/grants/ispyb_processing.sql
+++ b/grants/ispyb_processing.sql
@@ -9,6 +9,7 @@ CREATE ROLE IF NOT EXISTS ispyb_processing;
 -- Grants for ispyb_processing
 GRANT SELECT ON AdminVar TO 'ispyb_processing'; -- Hack TO allow ispyb_processing to connect through MaxScale
 GRANT SELECT,INSERT ON ImageQualityIndicators TO 'ispyb_processing'; -- Needed for bulk insertion of aggregated IQIs
+GRANT SELECT,INSERT,UPDATE ON BLSamplePosition TO 'ispyb_processing';
 GRANT SELECT,INSERT,UPDATE ON BLSampleImage TO 'ispyb_processing';
 GRANT SELECT,INSERT,UPDATE ON BLSampleImageAnalysis TO 'ispyb_processing';
 GRANT SELECT,INSERT,UPDATE ON BLSampleImage_has_AutoScoreClass TO 'ispyb_processing';