diff --git a/schemas/ispyb/updates/2026_04_20_Ligand_name.sql b/schemas/ispyb/updates/2026_04_20_Ligand_name.sql
new file mode 100644
index 00000000..277c792f
--- /dev/null
+++ b/schemas/ispyb/updates/2026_04_20_Ligand_name.sql
@@ -0,0 +1,5 @@
+INSERT IGNORE INTO SchemaStatus (scriptName, schemaStatus) VALUES ('2026_04_20_Ligand_name.sql', 'ONGOING');
+
+ALTER TABLE Ligand MODIFY COLUMN name VARCHAR(255) NOT NULL;
+
+UPDATE SchemaStatus SET schemaStatus = 'DONE' WHERE scriptName = '2026_04_20_Ligand_name.sql';