diff --git a/.github/workflows/dev_release_esptool_pypi.yml b/.github/workflows/dev_release_esptool_pypi.yml
index a4fbbf5c1..b27efe010 100644
--- a/.github/workflows/dev_release_esptool_pypi.yml
+++ b/.github/workflows/dev_release_esptool_pypi.yml
@@ -36,5 +36,5 @@ jobs:
         python -m pip download esptool==$(python setup.py -V) && echo "Version ${{ github.ref_name }} already published, skipping..." && exit 1
 
         echo "Packaging and publishing new esptool development release: ${{ github.ref_name }}"
-        python -m build
+        python -m build --sdist
         twine upload dist/*
diff --git a/.github/workflows/release_esptool_pypi.yml b/.github/workflows/release_esptool_pypi.yml
index 021b11483..a172bac45 100644
--- a/.github/workflows/release_esptool_pypi.yml
+++ b/.github/workflows/release_esptool_pypi.yml
@@ -34,6 +34,6 @@ jobs:
           exit 1
         else
           echo "Packaging and publishing new esptool version: ${CURRENT_VERSION}"
-          python -m build
+          python -m build --sdist
           twine upload dist/*
         fi