diff --git a/Dockerfile.standalone b/Dockerfile.standalone
index 0a49805..32b2618 100644
--- a/Dockerfile.standalone
+++ b/Dockerfile.standalone
@@ -96,8 +96,10 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     cmake \
     ninja-build \
     libusb-1.0-0 \
+    git \
     && apt-get clean \
-    && rm -rf /var/lib/apt/lists/*
+    && rm -rf /var/lib/apt/lists/* \
+    && pip install --no-cache-dir packaging
 
 # Install arduino-cli into /usr/local/bin directly (avoids touching /bin)
 RUN curl -fsSL https://raw.githubusercontent.com/arduino/arduino-cli/master/install.sh \