diff --git a/.SRCINFO b/.SRCINFO
index 5e3510a..285a40a 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,6 +1,6 @@
 pkgbase = linux-vfio
 	pkgdesc = Linux
-	pkgver = 6.13.8
+	pkgver = 6.13.9
 	pkgrel = 1
 	url = https://www.kernel.org
 	arch = x86_64
@@ -25,9 +25,9 @@ pkgbase = linux-vfio
 	makedepends = texlive-latexextra
 	options = !debug
 	options = !strip
-	source = https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.13.8.tar.xz
-	source = https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.13.8.tar.sign
-	source = config-6.13.8::https://gitlab.archlinux.org/archlinux/packaging/packages/linux/-/raw/6.13.8.arch1-1/config
+	source = https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.13.9.tar.xz
+	source = https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.13.9.tar.sign
+	source = config-6.13.9::https://gitlab.archlinux.org/archlinux/packaging/packages/linux/-/raw/main/config
 	source = 1001-6.13.0-add-acs-overrides.patch
 	source = 1002-6.13.0-i915-vga-arbiter.patch
 	source = https://github.com/archlinux/linux/releases/download/v6.13.8-arch1/linux-v6.13.8-arch1.patch.zst
@@ -35,7 +35,7 @@ pkgbase = linux-vfio
 	validpgpkeys = ABAF11C65A2970B130ABE3C479BE3E4300411886
 	validpgpkeys = 647F28654894E3BD457199BE38DBBDC86092693E
 	validpgpkeys = 83BC8889351B5DEBBB68416EB8AC08600F108CDF
-	sha256sums = 259afa59d73d676bec2ae89beacd949e08d54d3f70a7f8b0a742315095751abb
+	sha256sums = 53e7a3f028b6119ba499245bde0fa10275752817408a4a36b5a34ad74a4727b2
 	sha256sums = SKIP
 	sha256sums = SKIP
 	sha256sums = 569742a1c7ce7996ee4c650c444ed13d650fff7b84f23a16e6358693e58aee9f
diff --git a/PKGBUILD b/PKGBUILD
index f1c8614..e1aa851 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -14,7 +14,7 @@
 
 : ${_build_level:=1}
 
-: ${_cksum:=259afa59d73d676bec2ae89beacd949e08d54d3f70a7f8b0a742315095751abb}
+: ${_cksum:=53e7a3f028b6119ba499245bde0fa10275752817408a4a36b5a34ad74a4727b2}
 
 unset _pkgtype
 [[ ${_build_vfio::1} == "t" ]] && _pkgtype+="-vfio"
@@ -26,7 +26,7 @@ unset _pkgtype
 _gitname="linux"
 _pkgname="$_gitname${_pkgtype:-}"
 pkgbase="$_pkgname"
-pkgver=6.13.8
+pkgver=6.13.9
 pkgrel=1
 pkgdesc='Linux'
 url='https://www.kernel.org'
@@ -91,10 +91,12 @@ if [[ ${_build_vfio::1} == "t" ]]; then
 fi
 
 if [[ ${_build_arch_patch::1} == "t" ]]; then
+  [[ ${pkgver} =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]] && _pkgver=${pkgver%.*}
+
   _dl_url_arch='https://github.com/archlinux/linux'
   _srctag=$(
     curl -sSfL --max-redirs 3 --no-progress-meter "$_dl_url_arch/tags.atom" \
-      | grep -Eo "v${pkgver}-arch[0-9]+" \
+      | grep -Eom1 "v${_pkgver}\S*-arch[0-9]+" \
       | sort -rV | head -1
   )
   : ${_srctag:=v${pkgver}-arch1}
@@ -108,20 +110,6 @@ if [[ ${_build_arch_patch::1} == "t" ]]; then
   )
 fi
 
-case "$CARCH" in
-  x86_64_v2)
-    _build_level=2
-    ;;
-  x86_64_v3)
-    _build_level=3
-    ;;
-  x86_64_v4)
-    _build_level=4
-    ;;
-  *) # no changes; may be user defined
-    ;;
-esac
-
 if [[ ${_build_clang::1} == "t" ]]; then
   makedepends+=(clang llvm lld)