diff --git a/lfs/iperf3 b/lfs/iperf3
index 69b1ed14a..96b1e264d 100644
--- a/lfs/iperf3
+++ b/lfs/iperf3
@@ -24,7 +24,7 @@
 
 include Config
 
-VER        = 3.7
+VER        = 3.9
 
 THISAPP    = iperf-$(VER)
 DL_FILE    = $(THISAPP).tar.gz
@@ -32,7 +32,7 @@ DL_FROM    = $(URL_IPFIRE)
 DIR_APP    = $(DIR_SRC)/$(THISAPP)
 TARGET     = $(DIR_INFO)/$(THISAPP)
 PROG       = iperf3
-PAK_VER    = 2
+PAK_VER    = 3
 
 DEPS       =
 
@@ -44,7 +44,7 @@ objects = $(DL_FILE)
 
 $(DL_FILE) = $(DL_FROM)/$(DL_FILE)
 
-$(DL_FILE)_MD5 = 9534aae7430791b46d8cb8fc44afb6f8
+$(DL_FILE)_MD5 = 510fdb0943e88da5e0063f4599fa14f3
 
 install : $(TARGET)
 check : $(patsubst %,$(DIR_CHK)/%,$(objects))
@@ -76,7 +76,7 @@ $(subst %,%_MD5,$(objects)) :
 $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 	@$(PREBUILD)
 	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar zxf $(DIR_DL)/$(DL_FILE)
-	cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/iperf3/iperf-3.7-remove-pg-flag.patch
+	cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/iperf3/iperf-3.9-remove-pg-flag.patch
 	cd $(DIR_APP) && ./configure --prefix=/usr
 	cd $(DIR_APP) && make $(MAKETUNING) $(EXTRA_MAKE)
 	cd $(DIR_APP) && make install
diff --git a/src/patches/iperf3/iperf-3.7-remove-pg-flag.patch b/src/patches/iperf3/iperf-3.9-remove-pg-flag.patch
similarity index 68%
rename from src/patches/iperf3/iperf-3.7-remove-pg-flag.patch
rename to src/patches/iperf3/iperf-3.9-remove-pg-flag.patch
index 1dae2c211..e5fafe4af 100644
--- a/src/patches/iperf3/iperf-3.7-remove-pg-flag.patch
+++ b/src/patches/iperf3/iperf-3.9-remove-pg-flag.patch
@@ -1,6 +1,6 @@
-diff -Naur iperf-3.7.org/src/Makefile.am iperf-3.7/src/Makefile.am
---- iperf-3.7.org/src/Makefile.am	2019-06-21 03:12:47.000000000 +0200
-+++ iperf-3.7/src/Makefile.am	2019-07-17 12:19:38.133540594 +0200
+diff -Naur iperf-3.9.org/src/Makefile.am iperf-3.9/src/Makefile.am
+--- iperf-3.9.org/src/Makefile.am	2020-08-15 00:08:27.000000000 +0200
++++ iperf-3.9/src/Makefile.am	2020-12-22 22:16:14.488228000 +0100
 @@ -58,9 +58,9 @@
  iperf3_profile_SOURCES  = main.c \
                            $(libiperf_la_SOURCES)
@@ -13,10 +13,10 @@ diff -Naur iperf-3.7.org/src/Makefile.am iperf-3.7/src/Makefile.am
  endif
  
  # Specify the sources and various flags for the test cases
-diff -Naur iperf-3.7.org/src/Makefile.in iperf-3.7/src/Makefile.in
---- iperf-3.7.org/src/Makefile.in	2019-06-21 03:12:47.000000000 +0200
-+++ iperf-3.7/src/Makefile.in	2019-07-17 12:19:53.133496336 +0200
-@@ -670,9 +670,9 @@
+diff -Naur iperf-3.9.org/src/Makefile.in iperf-3.9/src/Makefile.in
+--- iperf-3.9.org/src/Makefile.in	2020-08-15 00:08:27.000000000 +0200
++++ iperf-3.9/src/Makefile.in	2020-12-22 22:16:41.934746000 +0100
+@@ -680,9 +680,9 @@
  @ENABLE_PROFILING_TRUE@iperf3_profile_SOURCES = main.c \
  @ENABLE_PROFILING_TRUE@                          $(libiperf_la_SOURCES)