diff --git a/packages/server/src/api/controllers/table/utils.ts b/packages/server/src/api/controllers/table/utils.ts
index 0611a7ae0d..ac3a2a5c8a 100644
--- a/packages/server/src/api/controllers/table/utils.ts
+++ b/packages/server/src/api/controllers/table/utils.ts
@@ -91,26 +91,6 @@ export async function checkForColumnUpdates(
     await checkForViewUpdates(updatedTable, deletedColumns, columnRename)
   }
 
-  const changedAttachmentSubtypeColumns = Object.values(
-    updatedTable.schema
-  ).filter(
-    (column): column is AttachmentFieldMetadata =>
-      column.type === FieldType.ATTACHMENTS &&
-      column.subtype !== oldTable?.schema[column.name]?.subtype
-  )
-  for (const attachmentColumn of changedAttachmentSubtypeColumns) {
-    if (attachmentColumn.subtype === FieldTypeSubtypes.ATTACHMENTS.SINGLE) {
-      attachmentColumn.constraints ??= { length: {} }
-      attachmentColumn.constraints.length ??= {}
-      attachmentColumn.constraints.length.maximum = 1
-      attachmentColumn.constraints.length.message =
-        "cannot contain multiple files"
-    } else {
-      delete attachmentColumn.constraints?.length?.maximum
-      delete attachmentColumn.constraints?.length?.message
-    }
-  }
-
   return { rows: updatedRows, table: updatedTable }
 }
 
diff --git a/packages/types/src/documents/app/row.ts b/packages/types/src/documents/app/row.ts
index b17aececd7..222c346591 100644
--- a/packages/types/src/documents/app/row.ts
+++ b/packages/types/src/documents/app/row.ts
@@ -39,7 +39,6 @@ export interface Row extends Document {
 export enum FieldSubtype {
   USER = "user",
   USERS = "users",
-  SINGLE = "single",
 }
 
 // The 'as' are required for typescript not to type the outputs as generic FieldSubtype
@@ -48,7 +47,4 @@ export const FieldTypeSubtypes = {
     USER: FieldSubtype.USER as FieldSubtype.USER,
     USERS: FieldSubtype.USERS as FieldSubtype.USERS,
   },
-  ATTACHMENTS: {
-    SINGLE: FieldSubtype.SINGLE as FieldSubtype.SINGLE,
-  },
 }
diff --git a/packages/types/src/documents/app/table/schema.ts b/packages/types/src/documents/app/table/schema.ts
index 946df6836e..3eeeee0a81 100644
--- a/packages/types/src/documents/app/table/schema.ts
+++ b/packages/types/src/documents/app/table/schema.ts
@@ -115,7 +115,6 @@ export interface BBReferenceFieldMetadata
 export interface AttachmentFieldMetadata
   extends Omit<BaseFieldSchema, "subtype"> {
   type: FieldType.ATTACHMENTS
-  subtype?: FieldSubtype.SINGLE
 }
 
 export interface FieldConstraints {