diff --git a/include/services/drtm_svc.h b/include/services/drtm_svc.h
index dcbe790..f0d3c63 100644
--- a/include/services/drtm_svc.h
+++ b/include/services/drtm_svc.h
@@ -54,10 +54,10 @@
 	(((_fid) >= ARM_DRTM_SVC_VERSION) && ((_fid) <= ARM_DRTM_SVC_LOCK_TCB_HASH))
 
 /* ARM DRTM Service Calls version numbers */
-#define ARM_DRTM_VERSION_MAJOR		U(0)
+#define ARM_DRTM_VERSION_MAJOR		U(1)
 #define ARM_DRTM_VERSION_MAJOR_SHIFT	16
 #define ARM_DRTM_VERSION_MAJOR_MASK	U(0x7FFF)
-#define ARM_DRTM_VERSION_MINOR		U(1)
+#define ARM_DRTM_VERSION_MINOR		U(0)
 #define ARM_DRTM_VERSION_MINOR_SHIFT	0
 #define ARM_DRTM_VERSION_MINOR_MASK	U(0xFFFF)