diff --git a/linux/linux.hash b/linux/linux.hash
index 9eb7f8702d..01c2c30dfb 100644
--- a/linux/linux.hash
+++ b/linux/linux.hash
@@ -1,6 +1,6 @@
 # From https://www.kernel.org/pub/linux/kernel/v6.x/sha256sums.asc
 sha256  62148e7e17f54c4a5ab5e75ad4882682c54bee818948be61a5963234fc0849fc  linux-6.11.11.tar.xz
-sha256  081089dfcf125aef67aa940ebb995ff789b646129f5d4b2365e1d5685b29a84e  linux-6.6.77.tar.xz
+sha256  5aa39a9bd555133ad741058f9908a277e6b36bb928481e747d885b50aaaa93ed  linux-6.6.78.tar.xz
 sha256  874d67d3181570e69ac6b33853f0448f05fc90d4cf3e4baaadc4a9cede7c50f3  linux-6.1.128.tar.xz
 # From https://www.kernel.org/pub/linux/kernel/v5.x/sha256sums.asc
 sha256  efe9f7eb5ea4d26cec6290689343e1804eb3b4a88ff5a60497a696fc08157c42  linux-5.15.178.tar.xz
diff --git a/package/linux-headers/Config.in.host b/package/linux-headers/Config.in.host
index 52d9be1380..0116158e1a 100644
--- a/package/linux-headers/Config.in.host
+++ b/package/linux-headers/Config.in.host
@@ -433,7 +433,7 @@ config BR2_DEFAULT_KERNEL_HEADERS
 	default "5.10.234"	if BR2_KERNEL_HEADERS_5_10
 	default "5.15.178"	if BR2_KERNEL_HEADERS_5_15
 	default "6.1.128"	if BR2_KERNEL_HEADERS_6_1
-	default "6.6.77"	if BR2_KERNEL_HEADERS_6_6
+	default "6.6.78"	if BR2_KERNEL_HEADERS_6_6
 	default "6.11.11"	if BR2_KERNEL_HEADERS_6_11
 	default BR2_DEFAULT_KERNEL_VERSION if BR2_KERNEL_HEADERS_VERSION
 	default "custom"	if BR2_KERNEL_HEADERS_CUSTOM_TARBALL