diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7a3463f..e21a7f5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,10 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/).
 - Use Swagger UI 5
 - Drop Node 14 support
 
+### Added
+
+- New option `odataVersion` to specify the OData version used to compile the OpenAPI specs
+
 ### Fixed
 
 - Works with `@sap/cds` 7.4 again
diff --git a/README.md b/README.md
index c20fef8..26f5f4a 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,8 @@ Call `cds_swagger ({...})` with the following object as first parameter:
 {
   "basePath": "/$api-docs", // the root path to mount the middleware on
   "apiPath": "", // the root path for the services (useful if behind a reverse proxy)
-  "diagram": true // whether to render the YUML diagram
+  "diagram": true, // whether to render the YUML diagram
+  "odataVersion": "4.0" // specify the OData Version used by cds-dk (>=7.2.0) to compile the OpenAPI specs. When undefined, this defaults to 4.01
 }
 ```
 
diff --git a/index.js b/index.js
index 5021255..c713de4 100644
--- a/index.js
+++ b/index.js
@@ -37,6 +37,7 @@ function toOpenApiDoc (service, options = {}) {
   if (!cache[service.name]) {
     cache[service.name] = cds.compile.to.openapi(service.model, {
       service: service.name,
+      'odata-version': options.odataVersion,
       'openapi:url': join('/', options.apiPath, service.path),
       'openapi:diagram': ('diagram' in options ? options.diagram : true),
       to: 'openapi' // workaround needed for cds-dk 7.4
@@ -58,4 +59,5 @@ function addLinkToIndexHtml (service, apiPath) {
  * @property {string} basePath - the root path to mount the middleware on
  * @property {string} apiPath - the root path for the services (useful if behind a reverse proxy)
  * @property {boolean} diagram - whether to render the YUML diagram
+ * @property {string} odataVersion - the OData version used to compile the OpenAPI specs. Defaults to 4.01
  */
diff --git a/tests/server-options.test.js b/tests/server-options.test.js
index 1d5d24d..e09309c 100644
--- a/tests/server-options.test.js
+++ b/tests/server-options.test.js
@@ -1,7 +1,7 @@
-process.env.TEST_OPTIONS    = JSON.stringify({basePath:'/test-base', apiPath: '/root', diagram:false})
+process.env.TEST_OPTIONS    = JSON.stringify({basePath:'/test-base', apiPath: '/root', diagram:false, odataVersion:'4.0'})
 process.env.TEST_OPTIONS_UI = JSON.stringify({customSiteTitle: 'My Custom Title'})
 
-const cds = require('@sap/cds/lib')
+const cds = require('@sap/cds')
 const { GET, expect } = cds.test.in(__dirname, 'app').run('serve', 'all')
 
 describe('with options', ()=>{