diff --git a/schemas/ispyb/updates/2025_01_08_ParticleClassificationGroup_binnedPixelSize.sql b/schemas/ispyb/updates/2025_01_08_ParticleClassificationGroup_binnedPixelSize.sql
new file mode 100644
index 0000000..dee155a
--- /dev/null
+++ b/schemas/ispyb/updates/2025_01_08_ParticleClassificationGroup_binnedPixelSize.sql
@@ -0,0 +1,5 @@
+INSERT IGNORE INTO SchemaStatus (scriptName, schemaStatus) VALUES ('2025_01_08_ParticleClassificationGroup_binnedPixelSize.sql', 'ONGOING');
+
+ALTER TABLE ParticleClassificationGroup ADD binnedPixelSize float COMMENT 'Binned pixel size. Unit: Angstroms', ALGORITHM=INSTANT;
+
+UPDATE SchemaStatus SET schemaStatus = 'DONE' WHERE scriptName = '2025_01_08_ParticleClassificationGroup_binnedPixelSize.sql';