diff --git a/net/iperf3/Makefile b/net/iperf3/Makefile
index 4bd3f7e9d2..519e89ce53 100644
--- a/net/iperf3/Makefile
+++ b/net/iperf3/Makefile
@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=iperf
-PKG_VERSION:=3.20
+PKG_VERSION:=3.21
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://downloads.es.net/pub/iperf
-PKG_HASH:=3acc572d1ecca4e0b20359c7bf0132ddc80d982efeee20c86f6726a9a6094388
+PKG_HASH:=656e4405ebd620121de7ceca3eaf43a88f79ea1b857d041a6a0b1314801acdd8
 
 PKG_MAINTAINER:=Felix Fietkau <nbd@nbd.name>
 PKG_LICENSE:=BSD-3-Clause