diff --git a/docs/src/api/irs-api.yaml b/docs/src/api/irs-api.yaml
index 8263f503e1..f11244fd1d 100644
--- a/docs/src/api/irs-api.yaml
+++ b/docs/src/api/irs-api.yaml
@@ -3,7 +3,7 @@ info:
   description: The API of the Item Relationship Service (IRS) for retrieving item
     graphs along the value chain of CATENA-X partners.
   title: IRS API
-  version: "5.4.2"
+  version: "4.5.2"
 servers:
   - url: http://localhost:8080
 security: