diff --git a/README.md b/README.md
index f397d03..bfcfa30 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ The files in this repository have been created by 3GPP, and the master source ca
© 2023, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC).
All rights reserved.
```
-API version: **September 2023**
+API version: **December 2023**
Release status: **Open** ✅
Other releases: [Rel-17 (Frozen)](https://github.com/jdegre/5GC_APIs/tree/Rel-17), [Rel-16 (Frozen)](https://github.com/jdegre/5GC_APIs/tree/Rel-16), [Rel-15 (Frozen)](https://github.com/jdegre/5GC_APIs/tree/Rel-15)
- [Info about 3GPP Releases and their status](https://www.3gpp.org/specifications/67-releases)