diff --git a/Dockerfile b/Dockerfile
index 3238d47..0659a2a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,6 +13,7 @@ ENV PATH="${PATH}:/spack/bin"
 
 COPY spack.yaml /root/spack-env/spack.yaml
 
+RUN /spack/bin/spack -e /root/spack-env fetch -D
 RUN /spack/bin/spack -e /root/spack-env install --fail-fast
 RUN /spack/bin/spack view symlink /bootstrap-view $(/spack/bin/spack find -H)