diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 979f3479df2..d2e0dc46643 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2111,6 +2111,20 @@ static void hci_cmd_status(struct net_buf *buf)
 	}
 }
 
+static inline void mynewt_rand_delay(void)
+{
+#if defined(CONFIG_BOARD_ARDUINO_101)
+	/* FIXME: Temporary hack for MyNewt HCI firmware which
+	 * crashes if it receives too rapid LE_Rand commands.
+	 */
+	if (sys_execution_context_type_get() == NANO_CTX_FIBER) {
+		fiber_sleep(MSEC(30));
+	} else {
+		task_sleep(MSEC(30));
+	}
+#endif
+}
+
 static int prng_reseed(struct tc_hmac_prng_struct *h)
 {
 	uint8_t seed[32];
@@ -2121,6 +2135,11 @@ static int prng_reseed(struct tc_hmac_prng_struct *h)
 		struct bt_hci_rp_le_rand *rp;
 		struct net_buf *rsp;
 
+		/* FIXME: Temporary hack for MyNewt HCI firmware which
+		 * crashes if it receives too rapid LE_Rand commands.
+		 */
+		mynewt_rand_delay();
+
 		ret = bt_hci_cmd_send_sync(BT_HCI_OP_LE_RAND, NULL, &rsp);
 		if (ret) {
 			return ret;
@@ -2150,6 +2169,11 @@ static int prng_init(struct tc_hmac_prng_struct *h)
 	struct net_buf *rsp;
 	int ret;
 
+	/* FIXME: Temporary hack for MyNewt HCI firmware which
+	 * crashes if it receives too rapid LE_Rand commands.
+	 */
+	mynewt_rand_delay();
+
 	ret = bt_hci_cmd_send_sync(BT_HCI_OP_LE_RAND, NULL, &rsp);
 	if (ret) {
 		return ret;