diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5928dce..804dd01 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 The format is based on [Keep a Changelog](http://keepachangelog.com/).
 
+## Version 0.6.0 - tbd
+
+### Added
+
+- Support for @sap/cds^7.5
+
 ## Version 0.5.2 - 2023-12-08
 
 ### Fixed
diff --git a/package.json b/package.json
index 4a514c9..e1d6d14 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cap-js/audit-logging",
-  "version": "0.5.2",
+  "version": "0.6.0",
   "description": "CDS plugin providing integration to the SAP Audit Log service as well as out-of-the-box personal data-related audit logging based on annotations.",
   "repository": "cap-js/audit-logging",
   "author": "SAP SE (https://www.sap.com)",
diff --git a/srv/service.js b/srv/service.js
index bbffd82..9176be7 100644
--- a/srv/service.js
+++ b/srv/service.js
@@ -4,8 +4,6 @@ const Base = cds.outboxed ? cds.Service : require('@sap/cds/libx/_runtime/messag
 
 module.exports = class AuditLogService extends Base {
   async init() {
-    const outboxed = this.immediate instanceof cds.Service
-
     // add common audit log entry fields
     this.before('*', req => {
       const { tenant, user, timestamp } = cds.context
@@ -22,8 +20,9 @@ module.exports = class AuditLogService extends Base {
     this.log = this.emit
     // NOTE: logSync is not a public API!
     this.logSync = (...args) => {
-      if (outboxed) return this.immediate.send(...args)
-      return this.send(...args)
+      if (cds.unboxed) return cds.unboxed(this).send(...args) //> cds >= 7.5
+      if (this.immediate instanceof cds.Service) return this.immediate.send(...args) //> cds ~ 7.4
+      return this.send(...args) //> cds <= 7.3
     }
   }
 }
diff --git a/test/api/srv/api-service.js b/test/api/srv/api-service.js
index 14a2cb4..d9a11f7 100644
--- a/test/api/srv/api-service.js
+++ b/test/api/srv/api-service.js
@@ -1,14 +1,13 @@
 module.exports = async function () {
   const audit = await cds.connect.to('audit-log')
-  const outboxed = audit.immediate instanceof cds.Service
 
   this.on('testEmit', async function () {
     await audit.emit('foo', { bar: 'baz' })
   })
 
   this.on('testSend', async function () {
-    if (outboxed) await audit.immediate.send('foo', { bar: 'baz' })
-    else await audit.send('foo', { bar: 'baz' })
+    // only works with cds^7.5, but we don't execute the tests with prior cds versions
+    await cds.unboxed(audit).send('foo', { bar: 'baz' })
   })
 
   this.on('testLog', async function () {