--no-cache-dir

Dockerfile

@@ -13,6 +13,6 @@ COPY --chown=$USERNAME ./requirements.txt ./
 COPY --chown=$USERNAME transformers/ ./transformers
 
 # Stock version of pip doesn't work with editable transformers.
-RUN pip install --upgrade pip && pip install -r requirements.txt
+RUN pip install --upgrade pip --no-cache-dir && pip install -r requirements.txt --no-cache-dir
 
 COPY --chown=$USERNAME src/ ./src