diff --git a/05.PVE制作虚拟机模板.md b/05.PVE制作虚拟机模板.md
index bfeb847..8393be2 100644
--- a/05.PVE制作虚拟机模板.md
+++ b/05.PVE制作虚拟机模板.md
@@ -187,8 +187,8 @@ $ sudo nvim /etc/sysctl.d/99-sysctl.conf
 kernel.panic = 20
 kernel.panic_on_oops = 1
 
-net.core.default_qdisc = pfifo_fast
-net.ipv4.tcp_congestion_control = cubic
+net.core.default_qdisc = fq_codel
+net.ipv4.tcp_congestion_control = bbr
 
 # Other adjustable system parameters
 
diff --git a/src/debian/debian_dns_99_sysctl.conf b/src/debian/debian_dns_99_sysctl.conf
index 20fdbf6..1536101 100644
--- a/src/debian/debian_dns_99_sysctl.conf
+++ b/src/debian/debian_dns_99_sysctl.conf
@@ -4,8 +4,8 @@
 kernel.panic = 20
 kernel.panic_on_oops = 1
 
-net.core.default_qdisc = pfifo_fast
-net.ipv4.tcp_congestion_control = cubic
+net.core.default_qdisc = fq_codel
+net.ipv4.tcp_congestion_control = bbr
 
 # Other adjustable system parameters