diff --git a/sdnr/northbound/ranSlice/model/src/main/yang/ran-network@2020-08-06.yang b/sdnr/northbound/ranSlice/model/src/main/yang/ran-network@2020-08-06.yang
index 42948d0..5065659 100644
--- a/sdnr/northbound/ranSlice/model/src/main/yang/ran-network@2020-08-06.yang
+++ b/sdnr/northbound/ranSlice/model/src/main/yang/ran-network@2020-08-06.yang
@@ -215,7 +215,7 @@
   }
 
   typedef SNssai {
-    type uint32;
+    type string;
     description
       "Single Network Slice Selection Assistance Information.";
     reference