diff --git a/net/dnsproxy/Makefile b/net/dnsproxy/Makefile
index 5c169586a..b4ab861dd 100644
--- a/net/dnsproxy/Makefile
+++ b/net/dnsproxy/Makefile
@@ -5,12 +5,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=dnsproxy
-PKG_VERSION:=0.75.4
+PKG_VERSION:=0.75.5
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://codeload.github.com/AdguardTeam/dnsproxy/tar.gz/v$(PKG_VERSION)?
-PKG_HASH:=e280193753770de7273eefd26c8aa6a91df85258d4e0b63a392260a24e99331a
+PKG_HASH:=a01b436cf9a6f94f7dc69536bfd3065bef358ab1be3d52508f697417999aad68
 
 PKG_MAINTAINER:=Tianling Shen <cnsztl@immortalwrt.org>
 PKG_LICENSE:=Apache-2.0
@@ -53,6 +53,8 @@ define Package/dnsproxy/install
 	$(INSTALL_BIN) $(CURDIR)/files/dnsproxy.init $(1)/etc/init.d/dnsproxy
 	$(INSTALL_DIR) $(1)/etc/uci-defaults/
 	$(INSTALL_BIN) $(CURDIR)/files/dnsproxy.defaults $(1)/etc/uci-defaults/80-dnsproxy-migration
+	$(INSTALL_DIR) $(1)/etc/sysctl.d/
+	$(INSTALL_CONF) ./files/dnsproxy.sysctl $(1)/etc/sysctl.d/50-dnsproxy.conf
 endef
 
 define Package/dnsproxy/conffiles
diff --git a/net/dnsproxy/files/dnsproxy.sysctl b/net/dnsproxy/files/dnsproxy.sysctl
new file mode 100644
index 000000000..dfc1698af
--- /dev/null
+++ b/net/dnsproxy/files/dnsproxy.sysctl
@@ -0,0 +1,3 @@
+# quic-go expects larger UDP send/receive buffers
+net.core.rmem_max = 7500000
+net.core.wmem_max = 7500000