diff --git a/wic/freedom-u540-bbl.wks b/wic/freedom-u540-bbl.wks
index 7a6927f..0336915 100644
--- a/wic/freedom-u540-bbl.wks
+++ b/wic/freedom-u540-bbl.wks
@@ -1,6 +1,6 @@
 # short-description: Create SD card image for HiFive Unleashed development board
 
 part bbl --source rawcopy --sourceparams="file=bbl.bin" --ondisk mmcblk --align 1 --part-type 2e54b353-1271-4842-806f-e436d6af6985
-part / --source rootfs --ondisk mmcblk --fstype=ext4 --label root --align 4096 --size 1G
+part / --source rootfs --ondisk mmcblk --fstype=ext4 --label root --align 4096 --size 5G
 
 bootloader --ptable gpt