diff --git a/package/iperf3/iperf3.hash b/package/iperf3/iperf3.hash
index ee60d717e6..cce50581e6 100644
--- a/package/iperf3/iperf3.hash
+++ b/package/iperf3/iperf3.hash
@@ -1,4 +1,4 @@
-# From https://downloads.es.net/pub/iperf/iperf-3.20.tar.gz.sha256
-sha256  3acc572d1ecca4e0b20359c7bf0132ddc80d982efeee20c86f6726a9a6094388  iperf-3.20.tar.gz
+# From https://downloads.es.net/pub/iperf/iperf-3.21.tar.gz.sha256
+sha256  656e4405ebd620121de7ceca3eaf43a88f79ea1b857d041a6a0b1314801acdd8  iperf-3.21.tar.gz
 # Locally computed
-sha256  7c9ba0385fcf35c4c9e08ad0c0cba72d4315f36f0f742fef4de826a28cc33a97  LICENSE
+sha256  6c6e9abd761ff429c11189cd93bdee5bff7e3591253bd614b253a5f4fd30cbe5  LICENSE
diff --git a/package/iperf3/iperf3.mk b/package/iperf3/iperf3.mk
index bb8eece6b2..bff9a40865 100644
--- a/package/iperf3/iperf3.mk
+++ b/package/iperf3/iperf3.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-IPERF3_VERSION = 3.20
+IPERF3_VERSION = 3.21
 IPERF3_SITE = https://downloads.es.net/pub/iperf
 IPERF3_SOURCE = iperf-$(IPERF3_VERSION).tar.gz
 IPERF3_LICENSE = BSD-3-Clause, BSD-2-Clause, MIT