diff --git a/plume-models/src/posts.rs b/plume-models/src/posts.rs
index 57f40df5..f7d057ec 100644
--- a/plume-models/src/posts.rs
+++ b/plume-models/src/posts.rs
@@ -568,42 +568,6 @@ impl Post {
         Ok(())
     }
 
-    pub fn update_tags(&self, conn: &Connection, tags: Vec<Hashtag>) -> Result<()> {
-        let tags_name = tags
-            .iter()
-            .filter_map(|t| t.name_string().ok())
-            .collect::<HashSet<_>>();
-
-        let old_tags = Tag::for_post(&*conn, self.id)?;
-        let old_tags_name = old_tags
-            .iter()
-            .filter_map(|tag| {
-                if !tag.is_hashtag {
-                    Some(tag.tag.clone())
-                } else {
-                    None
-                }
-            })
-            .collect::<HashSet<_>>();
-
-        for t in tags {
-            if !t
-                .name_string()
-                .map(|n| old_tags_name.contains(&n))
-                .unwrap_or(true)
-            {
-                Tag::from_activity(conn, &t, self.id, false)?;
-            }
-        }
-
-        for ot in old_tags.iter().filter(|t| !t.is_hashtag) {
-            if !tags_name.contains(&ot.tag) {
-                ot.delete(conn)?;
-            }
-        }
-        Ok(())
-    }
-
     pub fn update_tags07(&self, conn: &Connection, tags: Vec<Hashtag07>) -> Result<()> {
         let tags_name = tags
             .iter()
diff --git a/plume-models/src/timeline/mod.rs b/plume-models/src/timeline/mod.rs
index d6b2a59d..db7e3602 100644
--- a/plume-models/src/timeline/mod.rs
+++ b/plume-models/src/timeline/mod.rs
@@ -623,7 +623,10 @@ mod tests {
             )
             .unwrap();
             gnu_post
-                .update_tags(&conn, vec![Tag::build_activity("free".to_owned()).unwrap()])
+                .update_tags07(
+                    &conn,
+                    vec![Tag::build_activity07("free".to_owned()).unwrap()],
+                )
                 .unwrap();
             PostAuthor::insert(
                 &conn,
diff --git a/src/routes/posts.rs b/src/routes/posts.rs
index 626b8be4..1f65cbb6 100644
--- a/src/routes/posts.rs
+++ b/src/routes/posts.rs
@@ -325,9 +325,9 @@ pub fn update(
                 .filter(|t| !t.is_empty())
                 .collect::<HashSet<_>>()
                 .into_iter()
-                .filter_map(|t| Tag::build_activity(t.to_string()).ok())
+                .filter_map(|t| Tag::build_activity07(t.to_string()).ok())
                 .collect::<Vec<_>>();
-            post.update_tags(&conn, tags)
+            post.update_tags07(&conn, tags)
                 .expect("post::update: tags error");
 
             let hashtags = hashtags