diff --git a/board/mister/de10nano/patches/linux/linux.hash b/board/mister/de10nano/patches/linux/linux.hash
index 7dee7ba..2cd5ce5 100644
--- a/board/mister/de10nano/patches/linux/linux.hash
+++ b/board/mister/de10nano/patches/linux/linux.hash
@@ -36,7 +36,7 @@
 # A kernel bump (manual, or Renovate under P4.7) MUST update this line from the
 # signed manifest for the new version, or the build will fail closed -- which is
 # the intended behaviour.
-sha256  5ebdadb10a4b5708fc6b1c457764a110bc49f8150cc3502c59b921ead8c6fc8c  linux-6.18.48.tar.xz
+sha256  ae826f33111fea6f1d279dde7299d7463c8dfd204aeb75a8fb5432bc60a28191  linux-6.18.49.tar.xz
 
 # WHERE THE RT / BETA KERNEL HASH COMES FROM -- as of 2026-08-17, the SAME
 # signed-manifest rule as the stable pin above. This entry belongs to the RT
diff --git a/configs/mister_de10nano_defconfig b/configs/mister_de10nano_defconfig
index 14e2e35..073acc5 100644
--- a/configs/mister_de10nano_defconfig
+++ b/configs/mister_de10nano_defconfig
@@ -38,7 +38,7 @@
 #
 #     glibc is configured --enable-kernel=$(BR2_TOOLCHAIN_HEADERS_AT_LEAST)
 #     (package/glibc/glibc.mk:131). Under AS_KERNEL our kernel version arrives as the
-#     free-form string BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.18.48", which Kconfig
+#     free-form string BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.18.49", which Kconfig
 #     cannot compare numerically to select BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_18 -- so it
 #     silently falls back to the floor, 2.6. That would build glibc with ~15 years of
 #     dead compatibility code and runtime syscall-fallback paths for kernels this board
@@ -143,7 +143,7 @@ BR2_GLOBAL_PATCH_DIR="$(BR2_EXTERNAL_MISTER_PATH)/board/mister/de10nano/patches"
 BR2_ROOTFS_OVERLAY="$(BR2_EXTERNAL_MISTER_PATH)/board/mister/de10nano/rootfs-overlay $(BR2_EXTERNAL_MISTER_PATH)/work/extra-modules-overlay"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.18.48"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.18.49"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_MISTER_PATH)/board/mister/de10nano/linux-patches"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_MISTER_PATH)/board/mister/de10nano/linux.config"
diff --git a/configs/mister_kernel_defconfig b/configs/mister_kernel_defconfig
index 83b82d8..feed862 100644
--- a/configs/mister_kernel_defconfig
+++ b/configs/mister_kernel_defconfig
@@ -85,7 +85,7 @@ BR2_REPRODUCIBLE=y
 # on the FAT root at boot (docs/boot-chain.md I1/I2).
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.18.48"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.18.49"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_MISTER_PATH)/board/mister/de10nano/linux-patches"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_MISTER_PATH)/board/mister/de10nano/linux.config"