diff --git a/Dockerfile b/Dockerfile
index 272bae85..2e764cd5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,10 @@
 FROM ghcr.io/osgeo/gdal:alpine-normal-3.7.1
 
-RUN apk add nodejs yarn git python3 python3-dev py3-pip \
+RUN apk add --no-cache nodejs yarn git python3 python3-dev py3-pip \
     make bash sqlite-dev zlib-dev geos geos-dev \
     postgresql-libs gcc g++ musl-dev postgresql-dev cairo \
-    py3-cairo file
+    py3-cairo file ca-certificates \
+    && update-ca-certificates
 
 # Download and install Tippecanoe
 RUN git clone -b 2.31.0 https://github.com/felt/tippecanoe.git /tmp/tippecanoe && \
@@ -15,6 +16,6 @@ RUN git clone -b 2.31.0 https://github.com/felt/tippecanoe.git /tmp/tippecanoe &
 WORKDIR /usr/local/src/batch-machine
 ADD . /usr/local/src/batch-machine
 
-RUN pip3 install .
+RUN pip3 install . && pip3 install --upgrade certifi
 
 CMD python3 test.py