diff --git a/tools/singularity/centos7.def b/tools/singularity/centos7.def
index 226bd1559d..c0fe278e94 100644
--- a/tools/singularity/centos7.def
+++ b/tools/singularity/centos7.def
@@ -1,5 +1,5 @@
-BootStrap: library
-From: centos:7
+BootStrap: docker
+From: library/centos:7
 
 %post
         yum -y install epel-release