diff --git a/tools/deployment/common/cert-manager.sh b/tools/deployment/common/cert-manager.sh
index 9c62ae1a4a..27e6c372c7 100755
--- a/tools/deployment/common/cert-manager.sh
+++ b/tools/deployment/common/cert-manager.sh
@@ -2,7 +2,7 @@
 
 set -eux
 
-: ${CERT_MANAGER_VERSION:="v1.8.0"}
+: ${CERT_MANAGER_VERSION:="v1.16.1"}
 
 cert_path="/etc/openstack-helm"
 ca_cert_root="$cert_path/certs/ca"