diff --git a/metropolis/pkg/pki/ca.go b/metropolis/pkg/pki/ca.go
index 7c03f9f..29d1335 100644
--- a/metropolis/pkg/pki/ca.go
+++ b/metropolis/pkg/pki/ca.go
@@ -25,7 +25,7 @@
 	"math/big"
 	"time"
 
-	"go.etcd.io/etcd/clientv3"
+	clientv3 "go.etcd.io/etcd/client/v3"
 )
 
 // Issuer is an entity that can issue certificates. This interface is