diff --git a/.github/workflows/release_droid_prepare_original_checksum.yml b/.github/workflows/release_droid_prepare_original_checksum.yml
index 133dd02e..ae937252 100644
--- a/.github/workflows/release_droid_prepare_original_checksum.yml
+++ b/.github/workflows/release_droid_prepare_original_checksum.yml
@@ -28,6 +28,21 @@ jobs:
           go-version: "1.22"
       - name: Enable testcontainer reuse
         run: echo 'testcontainers.reuse.enable=true' > "$HOME/.testcontainers.properties"
+      - name: Free Disk Space (Ubuntu)
+        uses: jlumbroso/free-disk-space@main
+        with:
+          # this might remove tools that are actually needed,
+          # if set to "true" but frees about 6 GB
+          tool-cache: false
+
+          # all of these default to true, but feel free to set to
+          # "false" if necessary for your workflow
+          android: true
+          dotnet: true
+          haskell: true
+          large-packages: true
+          docker-images: true
+          swap-storage: true
       - name: Run tests and build with Maven
         run: mvn --batch-mode clean verify --file pom.xml
       - name: Prepare checksum