diff --git a/lib/controllers/compose.js b/lib/controllers/compose.js
index fbd3b93..1c1ec28 100644
--- a/lib/controllers/compose.js
+++ b/lib/controllers/compose.js
@@ -208,7 +208,7 @@ export function submitComposeController(mountPath, plugin) {
           id: new URL(noteId),
           attribution: actorUri,
           content: content.trim(),
-          inReplyTo: inReplyTo ? new URL(inReplyTo) : undefined,
+          replyTarget: inReplyTo ? new URL(inReplyTo) : undefined,
           published: Temporal.Now.instant(),
           to: publicAddress,
           cc: followersUri,
diff --git a/lib/jf2-to-as2.js b/lib/jf2-to-as2.js
index b30117b..7597436 100644
--- a/lib/jf2-to-as2.js
+++ b/lib/jf2-to-as2.js
@@ -215,7 +215,7 @@ export function jf2ToAS2Activity(properties, actorUrl, publicationUrl, options =
   }
 
   if (properties["in-reply-to"]) {
-    noteOptions.inReplyTo = new URL(properties["in-reply-to"]);
+    noteOptions.replyTarget = new URL(properties["in-reply-to"]);
   }
 
   // Attachments
diff --git a/package.json b/package.json
index 826ba1a..131fa41 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@rmdes/indiekit-endpoint-activitypub",
-  "version": "2.0.4",
+  "version": "2.0.5",
   "description": "ActivityPub federation endpoint for Indiekit via Fedify. Adds full fediverse support: actor, inbox, outbox, followers, following, syndication, and Mastodon migration.",
   "keywords": [
     "indiekit",