diff --git a/qa/workunits/kernel_untar_build.sh b/qa/workunits/kernel_untar_build.sh
index 9ee55eac992..9855f3d31b6 100755
--- a/qa/workunits/kernel_untar_build.sh
+++ b/qa/workunits/kernel_untar_build.sh
@@ -2,11 +2,11 @@
 
 set -ex
 
-wget -O linux.tar.gz http://download.ceph.com/qa/linux-5.4.tar.gz
+wget -O linux.tar.xz http://download.ceph.com/qa/linux-6.5.11.tar.xz
 
 mkdir t
 cd t
-tar xzf ../linux.tar.gz
+tar xJf ../linux.tar.xz
 cd linux*
 make defconfig
 make -j`grep -c processor /proc/cpuinfo`