diff --git a/containers-common.spec b/containers-common.spec
index f1a10c4..ed29e3c 100644
--- a/containers-common.spec
+++ b/containers-common.spec
@@ -12,7 +12,7 @@
 Epoch: 2
 Name: containers-common
 Version: 1
-Release: 20%{?dist}
+Release: 21%{?dist}
 Summary: Common configuration and documentation for containers
 License: ASL 2.0
 BuildArch: noarch
@@ -160,6 +160,10 @@ EOF
 %{_datadir}/rhel/secrets/*
 
 %changelog
+* Wed Feb 16 2022 Jindrich Novy <jnovy@redhat.com> - 2:1-21
+- containers.conf should contain network_backend = "cni" in RHEL8.6
+- Related: #2000051
+
 * Wed Feb 09 2022 Jindrich Novy <jnovy@redhat.com> - 2:1-20
 - update shortname aliases from upstream
 - Related: #2000051
diff --git a/update.sh b/update.sh
index e79aed1..36d027f 100755
--- a/update.sh
+++ b/update.sh
@@ -31,6 +31,7 @@ ensure containers.conf infra_image                   \"registry.access.redhat.co
 ensure containers.conf runtime                       \"runc\"
 ensure containers.conf events_logger                 \"file\"
 ensure containers.conf log_driver                    \"k8s-file\"
+ensure containers.conf network_backend               \"cni\"
 else
 ensure registries.conf unqualified-search-registries [\"registry.fedoraproject.org\",\ \"registry.access.redhat.com\",\ \"registry.centos.org\",\ \"quay.io\",\ \"docker.io\"]
 ensure registries.conf short-name-mode               \"enforcing\"