diff --git a/Dockerfile b/Dockerfile
index f1a6cc7..04ca64e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,6 +9,7 @@ RUN apt-get update \
         gdal-bin \
         python3 \
         python3-pil \
+        ca-certificates \
         proj-data \
     && rm -rf /var/lib/apt/lists/*