diff --git a/cmd/app/serve.go b/cmd/app/serve.go
index 2196bfbc3..265ac31ec 100644
--- a/cmd/app/serve.go
+++ b/cmd/app/serve.go
@@ -43,7 +43,6 @@ import (
 	"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
-	"github.com/sigstore/fulcio/pkg/ca"
 	certauth "github.com/sigstore/fulcio/pkg/ca"
 	"github.com/sigstore/fulcio/pkg/ca/ephemeralca"
 	"github.com/sigstore/fulcio/pkg/ca/fileca"
@@ -376,7 +375,7 @@ func checkServeCmdConfigFile() error {
 	return nil
 }
 
-func StartDuplexServer(ctx context.Context, cfg *config.FulcioConfig, ctClient *ctclient.LogClient, baseca ca.CertificateAuthority, host string, port, metricsPort int, ip identity.IssuerPool) error {
+func StartDuplexServer(ctx context.Context, cfg *config.FulcioConfig, ctClient *ctclient.LogClient, baseca certauth.CertificateAuthority, host string, port, metricsPort int, ip identity.IssuerPool) error {
 	logger, opts := log.SetupGRPCLogging()
 
 	d := duplex.New(