diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 06b02a0..36a99a7 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -90,7 +90,7 @@ jobs:
         with:
           # Set the base_image to the desired Raspberry Pi OS version
           base_image: raspios_lite:latest
-          image_additional_mb: 1000 # enlarge free space to 2 GB
+          image_additional_mb: 1500 # enlarge free space to 1.5 GB
           # Set the commands to run the tests
           commands: |
             apt-get update -y