diff --git a/support/testing/conf/minimal-x86-qemu-kernel.config b/support/testing/conf/minimal-x86-qemu-kernel.config
index cc8ee6a713..45994f804d 100644
--- a/support/testing/conf/minimal-x86-qemu-kernel.config
+++ b/support/testing/conf/minimal-x86-qemu-kernel.config
@@ -2,6 +2,7 @@ CONFIG_SYSVIPC=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_SMP=y
+# CONFIG_RETPOLINE is not set
 CONFIG_HYPERVISOR_GUEST=y
 CONFIG_PARAVIRT=y
 CONFIG_NET=y
diff --git a/support/testing/tests/fs/test_iso9660.py b/support/testing/tests/fs/test_iso9660.py
index 68f4840852..412430318b 100644
--- a/support/testing/tests/fs/test_iso9660.py
+++ b/support/testing/tests/fs/test_iso9660.py
@@ -18,7 +18,7 @@ BASIC_CONFIG = \
     BR2_TARGET_GENERIC_GETTY_BAUDRATE_115200=y
     BR2_LINUX_KERNEL=y
     BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-    BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.11"
+    BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.19.204"
     BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
     BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="{}"
     # BR2_TARGET_ROOTFS_TAR is not set