diff --git a/support/testing/tests/package/test_libjxl.py b/support/testing/tests/package/test_libjxl.py
index b6d5ffc9ce..dd87281f09 100644
--- a/support/testing/tests/package/test_libjxl.py
+++ b/support/testing/tests/package/test_libjxl.py
@@ -15,7 +15,7 @@ class TestLibJXL(infra.basetest.BRTest):
         BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
         BR2_LINUX_KERNEL=y
         BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-        BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.15.79"
+        BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.18.21"
         BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
         BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux.config"
         BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y