diff --git a/single-node-k8s.sh b/single-node-k8s.sh
index ed95911c9..174bba798 100755
--- a/single-node-k8s.sh
+++ b/single-node-k8s.sh
@@ -68,7 +68,7 @@ function set_env() {
     export MEMORY="8192"
     export CEPH_CSI_RUN_ALL_TESTS=true
     # downloading rook images is sometimes slow, extend timeout to 15 minutes
-    export ROOK_VERSION='v1.3.9'
+    export ROOK_VERSION=${ROOK_VERSION:-'v1.3.9'}
     export ROOK_DEPLOY_TIMEOUT=900
     # use podman for minikube.sh, Docker is not installed on the host
     export CONTAINER_CMD='podman'