diff --git a/components/bt/esp_ble_mesh/mesh_core/provisioner_prov.c b/components/bt/esp_ble_mesh/mesh_core/provisioner_prov.c
index c1947c21c4..c1ee15967a 100644
--- a/components/bt/esp_ble_mesh/mesh_core/provisioner_prov.c
+++ b/components/bt/esp_ble_mesh/mesh_core/provisioner_prov.c
@@ -2067,7 +2067,7 @@ int bt_mesh_provisioner_set_oob_input_data(const uint8_t idx, const uint8_t *val
     memset(link[idx].auth, 0, 16);
     if (num_flag) {
         /* Provisioner inputs number */
-        memcpy(link[idx].auth + 12, val, sizeof(uint32_t));
+        sys_memcpy_swap(link[idx].auth + 12, val, sizeof(uint32_t));
     } else {
         /* Provisioner inputs string */
         memcpy(link[idx].auth, val, link[idx].auth_size);
@@ -2104,7 +2104,7 @@ int bt_mesh_provisioner_set_oob_output_data(const uint8_t idx, const uint8_t *nu
     if (num_flag) {
         /* Provisioner output number */
         memset(link[idx].auth, 0, 16);
-        memcpy(link[idx].auth + 16 - size, num, size);
+        sys_memcpy_swap(link[idx].auth + 16 - size, num, size);
     } else {
         /* Provisioner output string */
         memset(link[idx].auth, 0, 16);