diff --git a/.env b/.env
index 16317bbe4c5..d879b310435 100644
--- a/.env
+++ b/.env
@@ -65,8 +65,8 @@ SPDK_CENTOS_REPO_VER="9.0-30.el9"
 
 # Ceph Cluster
 CEPH_CLUSTER_VERSION="${CEPH_VERSION}"
-CEPH_BRANCH=main
-CEPH_SHA=latest
+CEPH_BRANCH=wip-leonidc-0912-bcn-diff-fix-map-corrupt
+CEPH_SHA=5db334b3ad8ed636e1725ff3e171ad44fbb508b0
 
 CEPH_DEVEL_MGR_PATH=../ceph