diff --git a/eth_interface.c b/eth_interface.c
index 7a8ba51..cbdad80 100644
--- a/eth_interface.c
+++ b/eth_interface.c
@@ -58,7 +58,7 @@ EthInterface *ethintf_new(EthIODef *io) {
     ethIntf->eventQ = ETHLIB_OS_QUEUE_CREATE(ETHLIB_DEF_MQ_SIZE, uint32_t);
     // ETHLIB_OS_SEM_CREATE(&ethIntf->eventSem, ETHLIB_DEF_MQ_SIZE);
 
-    ETHLIB_OS_THREAD_CREATE(task_ethintf, "eth", ethIntf, osPriorityHigh, 2048);
+    ETHLIB_OS_THREAD_CREATE(task_ethintf, "eth", ethIntf, osPriorityRealtime, 2048);
 
     ethIntf->ipra = ipra_new(ethIntf);