diff --git a/vendor/git.autistici.org/ai3/go-common/serverutil/http.go b/vendor/git.autistici.org/ai3/go-common/serverutil/http.go
index b1d4b94968edc27e116836d981440d24ebeae60e..81c9ae902ff30237d3a45c33edb7ab12fa809c9a 100644
--- a/vendor/git.autistici.org/ai3/go-common/serverutil/http.go
+++ b/vendor/git.autistici.org/ai3/go-common/serverutil/http.go
@@ -70,8 +70,8 @@ func Serve(h http.Handler, serverConfig *ServerConfig, addr string) (err error)
 		// down remaining clients.
 		ctx, cancel := context.WithTimeout(context.Background(), gracefulShutdownTimeout)
 		defer cancel()
-		if err := srv.Shutdown(ctx); err == context.Canceled {
-			if err := srv.Close(); err != nil {
+		if err = srv.Shutdown(ctx); err == context.Canceled {
+			if err = srv.Close(); err != nil {
 				log.Printf("error terminating server: %v", err)
 			}
 		}
@@ -80,7 +80,12 @@ func Serve(h http.Handler, serverConfig *ServerConfig, addr string) (err error)
 	}()
 	signal.Notify(sigCh, syscall.SIGINT, syscall.SIGTERM)
 
-	if err := srv.ListenAndServe(); err != http.ErrServerClosed {
+	if tlsConfig != nil {
+		err = srv.ListenAndServeTLS("", "")
+	} else {
+		err = srv.ListenAndServe()
+	}
+	if err != http.ErrServerClosed {
 		return err
 	}
 
diff --git a/vendor/vendor.json b/vendor/vendor.json
index 8026fa82d78bb30fe6ee5825cc4dcf6c801ea334..ce9de66e8112c68edfc55b6fb159ffa1ba9c1075 100644
--- a/vendor/vendor.json
+++ b/vendor/vendor.json
@@ -5,26 +5,26 @@
 		{
 			"checksumSHA1": "raJx5BjBbVQG0ylGSjPpi+JvqjU=",
 			"path": "git.autistici.org/ai3/go-common",
-			"revision": "c2c933578837d28b6f0e9b0b4b183d53ab28785e",
-			"revisionTime": "2017-12-11T08:01:45Z"
+			"revision": "cd9ee1e6cc35b08a350d3dcb1b331750b363a82d",
+			"revisionTime": "2017-12-14T07:42:45Z"
 		},
 		{
 			"checksumSHA1": "2X2UMundICtpGTb8pTdBk7PCKss=",
 			"path": "git.autistici.org/ai3/go-common/clientutil",
-			"revision": "c2c933578837d28b6f0e9b0b4b183d53ab28785e",
-			"revisionTime": "2017-12-11T08:01:45Z"
+			"revision": "cd9ee1e6cc35b08a350d3dcb1b331750b363a82d",
+			"revisionTime": "2017-12-14T07:42:45Z"
 		},
 		{
 			"checksumSHA1": "mEnXMNziH82HFtGngHU19VHTVHs=",
 			"path": "git.autistici.org/ai3/go-common/ldap",
-			"revision": "c2c933578837d28b6f0e9b0b4b183d53ab28785e",
-			"revisionTime": "2017-12-11T08:01:45Z"
+			"revision": "cd9ee1e6cc35b08a350d3dcb1b331750b363a82d",
+			"revisionTime": "2017-12-14T07:42:45Z"
 		},
 		{
-			"checksumSHA1": "3bComZxAfgnoTG4UDlyFgLyeykc=",
+			"checksumSHA1": "g6I5506EXkjQetiXSYbVTypDnDM=",
 			"path": "git.autistici.org/ai3/go-common/serverutil",
-			"revision": "c2c933578837d28b6f0e9b0b4b183d53ab28785e",
-			"revisionTime": "2017-12-11T08:01:45Z"
+			"revision": "cd9ee1e6cc35b08a350d3dcb1b331750b363a82d",
+			"revisionTime": "2017-12-14T07:42:45Z"
 		},
 		{
 			"checksumSHA1": "DFjm2ZJpUwioPApa3htGXLEFWl8=",