Merge pull request #633 from hubmapconsortium/yuanzhou/new-docker-base

Remove --upgrade pip

docker/ingest-api/Dockerfile

@@ -43,7 +43,7 @@ RUN yum install -y yum-utils && \
     rm /etc/nginx/conf.d/default.conf && \
     mv nginx/nginx.conf /etc/nginx/nginx.conf && \
     rm -rf nginx && \
-    pip install --upgrade pip -r src/requirements.txt && \
+    pip install -r src/requirements.txt && \
     pip install -r src/routes/validation/ingest_validation_tools/requirements.txt && \
     chmod +x start.sh && \
     dnf install langpacks-en glibc-all-langpacks -y && \