diff --git a/VERSION b/VERSION
index 625610e..3a3cd8c 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.3.1-dev
+1.3.1
diff --git a/go.mod b/go.mod
index ca9e14f..377ae37 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/omec-project/ngap
 
-go 1.21
+go 1.23
 
 require (
 	github.com/omec-project/aper v1.2.1