diff --git a/sdk_container/src/third_party/coreos-overlay/sys-boot/shim-signed/Manifest b/sdk_container/src/third_party/coreos-overlay/sys-boot/shim-signed/Manifest
index 01961010c9..7a08834c8d 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-boot/shim-signed/Manifest
+++ b/sdk_container/src/third_party/coreos-overlay/sys-boot/shim-signed/Manifest
@@ -1,2 +1,2 @@
-DIST shimaa64-15.8.efi.signed 995206 BLAKE2B fc858188d800dd785a6b989f154ddb3bb07748b8ee91ec3ffbabddf7452bb12eecfb788d9df97d1d900395c0825a4336f8b428bafa978d31995c0f671b7d1726 SHA512 d7875c906b715819b8d1b2a3a79adce64e4b37cfd7d8164cdf76fbb73a8e0b8264b01c403f8d71869f7a78bb5f840e81061f41d75d85cb49c58d3bee5e65004c
-DIST shimx64-15.8.efi.signed 948418 BLAKE2B 7c92989ec63111799cc0f481cef47108e58f96dc3b53116e1cee1e24cc940d3e5470a0aa6c057d86339f435eddc22272281c08e46db0856ada6db69d7cd32c64 SHA512 ff6e4f4add5c9d3914118e53e2669b7f63168c41be95b07c5a8308c64bf1a1d4ff133bb0dde602f0a0c7ef035e4847eac14969c3d9ff3a99c9011c2d8dd20014
+DIST shimaa64-15.8-r1.efi.signed 997336 BLAKE2B a8a138a6a72e76b829898f6c83d7156f7f6885bf85f530779a487e8ff7f66916fdca90d31b9742dca315c16060839cb9865847a80e1e45ab7e5d746b46b4e9f2 SHA512 509d4d434c7951a7f76b000b6c7f6bf6419de5a6fe95a8116782b74857665801bdb1dcb4957ffc20e2ddc8614b0e21f978b51edf7ef5b5c8a0e801ab1a77d7d3
+DIST shimx64-15.8-r1.efi.signed 950552 BLAKE2B b008664d23dae3489114f352aa55384ac7145a7c482d601378e1285fa9859ccf7541eafa2ec445a480bde0058c533235aa8be92c32bcba58511e26f32477af15 SHA512 c95644871e0d4450f978d23f9d3940bddecbc50607f79df39e9cb2a87c1c3620c24880353516e4c1f87d334a034f7dd8d0def3b107c189b6896f084f63c88609
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-boot/shim-signed/shim-signed-15.8.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-boot/shim-signed/shim-signed-15.8-r1.ebuild
similarity index 68%
rename from sdk_container/src/third_party/coreos-overlay/sys-boot/shim-signed/shim-signed-15.8.ebuild
rename to sdk_container/src/third_party/coreos-overlay/sys-boot/shim-signed/shim-signed-15.8-r1.ebuild
index 113f9d1c9c..ecf3ade2e6 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-boot/shim-signed/shim-signed-15.8.ebuild
+++ b/sdk_container/src/third_party/coreos-overlay/sys-boot/shim-signed/shim-signed-15.8-r1.ebuild
@@ -1,4 +1,4 @@
-# Copyright (c) 2024 The Flatcar Maintainers.
+# Copyright (c) 2024-2025 The Flatcar Maintainers.
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -16,10 +16,10 @@ SLOT="0"
 KEYWORDS="amd64 arm64"
 
 for arch in ${KEYWORDS}; do
-	SRC_URI+="${arch}? ( https://mirror.release.flatcar-linux.net/coreos/shim${ARCHES[$arch]}-${PV}.efi.signed ) "
+	SRC_URI+="${arch}? ( https://mirror.release.flatcar-linux.net/coreos/shim${ARCHES[$arch]}-${PVR}.efi.signed ) "
 done
 
 src_install() {
 	insinto /usr/lib/shim
-	newins "${DISTDIR}/shim${ARCHES[$ARCH]}-${PV}.efi.signed" "shim${ARCHES[$ARCH]}.efi.signed"
+	newins "${DISTDIR}/shim${ARCHES[$ARCH]}-${PVR}.efi.signed" "shim${ARCHES[$ARCH]}.efi.signed"
 }