diff --git a/api/src/controllers/NotesTitleController.kt b/api/src/controllers/NotesTitleController.kt
index 00e82ff..c6d910e 100644
--- a/api/src/controllers/NotesTitleController.kt
+++ b/api/src/controllers/NotesTitleController.kt
@@ -12,10 +12,15 @@ import io.ktor.application.call
 import io.ktor.http.HttpStatusCode
 import io.ktor.request.receive
 import io.ktor.response.respond
-import io.ktor.routing.*
+import io.ktor.routing.Route
+import io.ktor.routing.get
+import io.ktor.routing.patch
+import io.ktor.routing.post
 import me.liuwj.ktorm.database.Database
 import me.liuwj.ktorm.dsl.*
-import me.liuwj.ktorm.entity.*
+import me.liuwj.ktorm.entity.add
+import me.liuwj.ktorm.entity.find
+import me.liuwj.ktorm.entity.sequenceOf
 import org.kodein.di.Kodein
 import org.kodein.di.generic.instance
 import java.time.LocalDateTime
@@ -121,8 +126,35 @@ class NotesTitleController(kodein: Kodein) : AuthCrudController("/notes/{noteTit
                 return@patch call.respondStatus(HttpStatusCode.BadRequest)
             }
 
+            val noteId = call.requestedNoteId()
+                ?: return@patch call.respondStatus(HttpStatusCode.NotFound)
 
+            db.useTransaction {
+                if (requestedChanges.title != null) {
+                    db.update(Notes) {
+                        it.title to requestedChanges.title
+                        where { it.id eq noteId }
+                    }
+                }
 
+                if (requestedChanges.tags != null) {
+                    // delete all tags
+                    db.delete(Tags) {
+                        it.noteId eq noteId
+                    }
+
+                    // put new ones
+                    requestedChanges.tags.forEach { tagName ->
+                        db.insert(Tags) {
+                            it.name to tagName
+                            it.noteId to noteId
+                        }
+                    }
+                }
+
+            }
+
+            call.respondStatus(HttpStatusCode.OK)
         }
     }
 }
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