diff --git a/contrib/util/check-config.sh b/contrib/util/check-config.sh
index 3f139fe28b..64346e17a0 100755
--- a/contrib/util/check-config.sh
+++ b/contrib/util/check-config.sh
@@ -364,6 +364,8 @@ if [ "$(cat /sys/module/apparmor/parameters/enabled 2>/dev/null)" = 'Y' ]; then
       wrap_color '(use "apt-get install apparmor" to fix this)'
     elif command -v yum &> /dev/null; then
       wrap_color '(your best bet is "yum install apparmor-parser")'
+    elif command -v zypper &> /dev/null; then
+      wrap_color '(your best bet is "zypper install apparmor-parser")'
     else
       wrap_color '(look for an "apparmor" package for your distribution)'
     fi
diff --git a/tests/TESTING.md b/tests/TESTING.md
index b4f11edda0..8e59781557 100644
--- a/tests/TESTING.md
+++ b/tests/TESTING.md
@@ -66,7 +66,7 @@ The sub-directories therein contain fixtures for running simple clusters to asse
 - [Install Script](../tests/install) :arrow_right: on proposed changes to [install.sh](../install.sh) 
   - [CentOS 7](../tests/install/centos-7) (stand-in for RHEL 7)
   - [Rocky Linux 8](../tests/install/rocky-8) (stand-in for RHEL 8)
-  - [Leap 15.3](../tests/install/opensuse-microos) (stand-in for SLES)
+  - [Leap 15.4](../tests/install/opensuse-leap) (stand-in for SLES)
   - [MicroOS](../tests/install/opensuse-microos) (stand-in for SLE-Micro)
   - [Ubuntu 20.04](../tests/install/ubuntu-focal) (Focal Fossa)
 - [Control Groups](../tests/cgroup) :arrow_right: on any code change
@@ -74,7 +74,7 @@ The sub-directories therein contain fixtures for running simple clusters to asse
     - [Fedora 35](../tests/cgroup/unified/fedora-35) (rootfull + rootless)
 - [Snapshotter](../tests/snapshotter/btrfs/opensuse-leap) :arrow_right: on any code change
   - [BTRFS](../tests/snapshotter/btrfs) ([containerd built-in](https://github.com/containerd/containerd/tree/main/snapshots/btrfs))
-    - [Leap 15.3](../tests/snapshotter/btrfs/opensuse-leap)
+    - [Leap 15.4](../tests/snapshotter/btrfs/opensuse-leap)
 
 When adding new installer test(s) please copy the prevalent style for the `Vagrantfile`.
 Ideally, the boxes used for additional assertions will support the default `virtualbox` provider which
diff --git a/tests/install/opensuse-leap/Vagrantfile b/tests/install/opensuse-leap/Vagrantfile
index 6b1eeac315..ede7aeb084 100644
--- a/tests/install/opensuse-leap/Vagrantfile
+++ b/tests/install/opensuse-leap/Vagrantfile
@@ -8,7 +8,7 @@ Vagrant.configure("2") do |config|
   config.vagrant.plugins = {
     'vagrant-k3s' => {:version => '~> 0.1.3'},
   }
-  config.vm.box = 'opensuse/Leap-15.3.x86_64'
+  config.vm.box = 'opensuse/Leap-15.4.x86_64'
   config.vm.boot_timeout = ENV['TEST_VM_BOOT_TIMEOUT'] || 600 # seconds
   config.vm.synced_folder '.', '/vagrant', disabled: true
 
diff --git a/tests/snapshotter/btrfs/opensuse-leap/Vagrantfile b/tests/snapshotter/btrfs/opensuse-leap/Vagrantfile
index 2a411e8686..daf0a746cb 100644
--- a/tests/snapshotter/btrfs/opensuse-leap/Vagrantfile
+++ b/tests/snapshotter/btrfs/opensuse-leap/Vagrantfile
@@ -8,7 +8,7 @@ Vagrant.configure("2") do |config|
   config.vagrant.plugins = {
     'vagrant-k3s' => {:version => '~> 0.1.3'},
   }
-  config.vm.box = "opensuse/Leap-15.3.x86_64"
+  config.vm.box = "opensuse/Leap-15.4.x86_64"
   config.vm.boot_timeout = ENV['TEST_VM_BOOT_TIMEOUT'] || 600 # seconds
   config.vm.synced_folder '../../../../dist/artifacts', '/vagrant', type: 'rsync', disabled: false,
     rsync__exclude: ENV['RSYNC_EXCLUDE'] || '*.tar.*'