diff --git a/cmd/checker-caldav/main.go b/cmd/checker-caldav/main.go
index 78c1f00..dc9ae7d 100644
--- a/cmd/checker-caldav/main.go
+++ b/cmd/checker-caldav/main.go
@@ -5,7 +5,7 @@ import (
 	"log"
 
 	"git.happydns.org/checker-dav/caldav"
-	sdk "git.happydns.org/checker-sdk-go/checker"
+	"git.happydns.org/checker-sdk-go/checker/server"
 )
 
 // Version is injected at link time via -ldflags "-X main.Version=...".
@@ -16,8 +16,8 @@ var listenAddr = flag.String("listen", ":8080", "HTTP listen address")
 func main() {
 	flag.Parse()
 	caldav.Version = Version
-	server := sdk.NewServer(caldav.Provider())
-	if err := server.ListenAndServe(*listenAddr); err != nil {
+	srv := server.New(caldav.Provider())
+	if err := srv.ListenAndServe(*listenAddr); err != nil {
 		log.Fatalf("server error: %v", err)
 	}
 }
diff --git a/cmd/checker-carddav/main.go b/cmd/checker-carddav/main.go
index 19f4c2c..721e84b 100644
--- a/cmd/checker-carddav/main.go
+++ b/cmd/checker-carddav/main.go
@@ -5,7 +5,7 @@ import (
 	"log"
 
 	"git.happydns.org/checker-dav/carddav"
-	sdk "git.happydns.org/checker-sdk-go/checker"
+	"git.happydns.org/checker-sdk-go/checker/server"
 )
 
 // Version is injected at link time via -ldflags "-X main.Version=...".
@@ -16,8 +16,8 @@ var listenAddr = flag.String("listen", ":8080", "HTTP listen address")
 func main() {
 	flag.Parse()
 	carddav.Version = Version
-	server := sdk.NewServer(carddav.Provider())
-	if err := server.ListenAndServe(*listenAddr); err != nil {
+	srv := server.New(carddav.Provider())
+	if err := srv.ListenAndServe(*listenAddr); err != nil {
 		log.Fatalf("server error: %v", err)
 	}
 }
diff --git a/go.mod b/go.mod
index 38eb058..82ff426 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module git.happydns.org/checker-dav
 go 1.25.0
 
 require (
-	git.happydns.org/checker-sdk-go v1.2.0
+	git.happydns.org/checker-sdk-go v1.3.0
 	git.happydns.org/checker-tls v0.2.0
 )
 
diff --git a/go.sum b/go.sum
index cfaede5..dd024c8 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-git.happydns.org/checker-sdk-go v1.2.0 h1:v4MpKAz0W3PwP+bxx3pya8w893sVH5xTD1of1cc0TV8=
-git.happydns.org/checker-sdk-go v1.2.0/go.mod h1:aNAcfYFfbhvH9kJhE0Njp5GX0dQbxdRB0rJ0KvSC5nI=
+git.happydns.org/checker-sdk-go v1.3.0 h1:FG2kIhlJCzI0m35EhxSgn4UWc9M4ha6aZTeoChu4l7A=
+git.happydns.org/checker-sdk-go v1.3.0/go.mod h1:aNAcfYFfbhvH9kJhE0Njp5GX0dQbxdRB0rJ0KvSC5nI=
 git.happydns.org/checker-tls v0.2.0 h1:2dYpcePBylUc3le76fFlLbxraiLpGESmOhx4NfD7REM=
 git.happydns.org/checker-tls v0.2.0/go.mod h1:0ZSG0CTP007SHBPE7qInESVIOcW+xgucHUhHgj6MeZ8=
 github.com/emersion/go-ical v0.0.0-20240127095438-fc1c9d8fb2b6 h1:kHoSgklT8weIDl6R6xFpBJ5IioRdBU1v2X2aCZRVCcM=
diff --git a/internal/dav/principal.go b/internal/dav/principal.go
index d2a2050..89f1f64 100644
--- a/internal/dav/principal.go
+++ b/internal/dav/principal.go
@@ -64,7 +64,7 @@ func FindScheduleURLs(ctx context.Context, client *http.Client, principalURL str
 // ── raw PROPFIND ─────────────────────────────────────────────────────────────
 
 // multistatus is the subset of the DAV:multistatus XML schema we need to read
-// principal URLs and scheduling hrefs. It is intentionally permissive; extra
+// principal URLs and scheduling hrefs. It is intentionally permissive, extra
 // elements are ignored, which makes us tolerant of server-specific extensions.
 type multistatus struct {
 	XMLName  xml.Name     `xml:"DAV: multistatus"`