diff --git a/net/iperf3/Makefile b/net/iperf3/Makefile
index a75e04e4..aef27da5 100644
--- a/net/iperf3/Makefile
+++ b/net/iperf3/Makefile
@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=iperf
-PKG_VERSION:=3.17.1
+PKG_VERSION:=3.18
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://downloads.es.net/pub/iperf
-PKG_HASH:=84404ca8431b595e86c473d8f23d8bb102810001f15feaf610effd3b318788aa
+PKG_HASH:=c0618175514331e766522500e20c94bfb293b4424eb27d7207fb427b88d20bab
 
 PKG_MAINTAINER:=Felix Fietkau <nbd@nbd.name>
 PKG_LICENSE:=BSD-3-Clause
diff --git a/net/iperf3/patches/010-big-endian.patch b/net/iperf3/patches/010-big-endian.patch
new file mode 100644
index 00000000..570a56c7
--- /dev/null
+++ b/net/iperf3/patches/010-big-endian.patch
@@ -0,0 +1,11 @@
+--- a/src/iperf_api.c
++++ b/src/iperf_api.c
+@@ -4137,7 +4137,7 @@ iperf_print_results(struct iperf_test *test)
+                                 iperf_printf(test, report_sender_not_available_summary_format, "SUM");
+                         }
+                         else {
+-                          iperf_printf(test, report_sum_bw_retrans_format, mbuf, start_time, sender_time, ubuf, nbuf, total_retransmits, report_sender);
++                          iperf_printf(test, report_sum_bw_retrans_format, mbuf, start_time, sender_time, ubuf, nbuf, (int)total_retransmits, report_sender);
+                         }
+                 } else {
+                     /* Summary sum, TCP without retransmits. */