diff --git a/metropolis/pkg/pki/crl_test.go b/metropolis/pkg/pki/crl_test.go
index 39a0b0e..8f9cf5d 100644
--- a/metropolis/pkg/pki/crl_test.go
+++ b/metropolis/pkg/pki/crl_test.go
@@ -5,7 +5,8 @@
 	"crypto/x509"
 	"testing"
 
-	"go.etcd.io/etcd/integration"
+	"go.etcd.io/etcd/client/pkg/v3/testutil"
+	"go.etcd.io/etcd/tests/v3/integration"
 
 	"source.monogon.dev/metropolis/node/core/consensus/client"
 )
@@ -13,11 +14,13 @@
 // TestRevoke exercises the CRL revocation and watching functionality of a CA
 // certificate.
 func TestRevoke(t *testing.T) {
-	cluster := integration.NewClusterV3(nil, &integration.ClusterConfig{
+	tb, cancel := testutil.NewTestingTBProthesis("pki-revoke")
+	defer cancel()
+	cluster := integration.NewClusterV3(tb, &integration.ClusterConfig{
 		Size: 1,
 	})
 	cl := client.NewLocal(cluster.Client(0))
-	defer cluster.Terminate(nil)
+	defer cluster.Terminate(tb)
 	ctx, ctxC := context.WithCancel(context.Background())
 	defer ctxC()
 	ns := Namespaced("/test-managed/")