diff --git a/ansible/roles/gitea-actions/templates/Containerfile.platformio.j2 b/ansible/roles/gitea-actions/templates/Containerfile.platformio.j2
index acbd763..da21e24 100644
--- a/ansible/roles/gitea-actions/templates/Containerfile.platformio.j2
+++ b/ansible/roles/gitea-actions/templates/Containerfile.platformio.j2
@@ -23,7 +23,8 @@ RUN pip install --no-cache-dir platformio=={{ platformio_core_version }}
 # Seed project mirroring the real projects' platformio.ini so `pio pkg install`
 # pulls the platform + toolchain + framework packages into the core dir.
 RUN mkdir -p /tmp/seed/src \
-    && printf '[env:seed]\nplatform = espressif32@{{ pio_espressif32_version }}\nframework = arduino\nboard = esp32dev\nboard_build.filesystem = spiffs\n' > /tmp/seed/platformio.ini \
+    && printf '[env:seed]\nplatform = espressif32@{{ pio_espressif32_version }}\nframework = arduino\nboard = esp32dev\nboard_build.filesystem = spiffs\nplatform_packages = platformio/tool-esptoolpy\n' > /tmp/seed/platformio.ini \
     && pio pkg install -d /tmp/seed \
+    && pio pkg install -d /tmp/seed --tool platformio/tool-mkspiffs \
     && rm -rf /tmp/seed \
     && chmod -R a+rX ${PLATFORMIO_CORE_DIR}