diff --git a/OpenAPI/TS28541_NrNrm.yaml b/OpenAPI/TS28541_NrNrm.yaml
index fe7b070aae74cbd16963baf960cc547b1863d57e..0916a7bcb042323bb45af92819f87968e22c2ed6 100755
--- a/OpenAPI/TS28541_NrNrm.yaml
+++ b/OpenAPI/TS28541_NrNrm.yaml
@@ -1,10 +1,10 @@
 openapi: 3.0.1
 info:
   title: NR NRM
-  version: 17.17.0
+  version: 17.18.0
   description: >-
     OAS 3.0.1 specification of the NR NRM
-    © 2024, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC).
+    © 2025, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC).
     All rights reserved.
 externalDocs:
   description: 3GPP TS 28.541; 5G NRM, NR NRM
@@ -189,19 +189,11 @@ components:
           type: integer
           minimum: 0
           maximum: 100
-        maxNumberOfPreamblesSent:
-          enum:
-            - n3
-            - n4
-            - n5
-            - n6
-            - n7
-            - n8
-            - n10
-            - n20
-            - n50
-            - n100
-            - n200
+        numberOfPreamblesSent:
+          type: integer
+          minimum: 0
+          maximum: 200
+
 
     UeAccDelayProbabilityDist:
       type: array