diff --git a/.github/workflows/test-on-rpi.yml b/.github/workflows/test-on-rpi.yml
index ecb7f75..1c1283c 100644
--- a/.github/workflows/test-on-rpi.yml
+++ b/.github/workflows/test-on-rpi.yml
@@ -30,7 +30,7 @@ jobs:
         with:
           # Set the base_image to the desired Raspberry Pi OS version
           base_image: https://downloads.raspberrypi.com/raspios_lite_armhf/images/raspios_lite_armhf-2023-12-11/2023-12-11-raspios-bookworm-armhf-lite.img.xz
-          image_additional_mb: 2560 # enlarge free space to 2.5 GB
+          image_additional_mb: 3072 # enlarge free space to 3GB
           optimize_image: true
           # user: inky --> not supported?
           commands: |