diff --git a/share/spack/docker/centos-6.dockerfile b/share/spack/docker/centos-6.dockerfile
index f192c54427f..b0186f2ff83 100644
--- a/share/spack/docker/centos-6.dockerfile
+++ b/share/spack/docker/centos-6.dockerfile
@@ -35,7 +35,6 @@ RUN yum update -y \
         tcl \
         unzip \
         which \
- && pip install boto3 \
  && rm -rf /var/cache/yum \
  && yum clean all