diff --git a/crates/api_common/src/tagline.rs b/crates/api_common/src/tagline.rs
index cfc2501e8..e2dfd8ffd 100644
--- a/crates/api_common/src/tagline.rs
+++ b/crates/api_common/src/tagline.rs
@@ -1,4 +1,4 @@
-use lemmy_db_schema::source::tagline::Tagline;
+use lemmy_db_schema::{newtypes::TaglineId, source::tagline::Tagline};
 use serde::{Deserialize, Serialize};
 use serde_with::skip_serializing_none;
 #[cfg(feature = "full")]
@@ -12,6 +12,15 @@ pub struct CreateTagline {
   pub content: String,
 }
 
+#[derive(Debug, Serialize, Deserialize, Clone, PartialEq, Eq, Hash)]
+#[cfg_attr(feature = "full", derive(TS))]
+#[cfg_attr(feature = "full", ts(export))]
+/// Update a tagline
+pub struct UpdateTagline {
+  pub id: TaglineId,
+  pub content: String,
+}
+
 #[derive(Debug, Serialize, Deserialize, Clone)]
 #[cfg_attr(feature = "full", derive(TS))]
 #[cfg_attr(feature = "full", ts(export))]
diff --git a/crates/api_crud/src/tagline/mod.rs b/crates/api_crud/src/tagline/mod.rs
index fa6613e51..9ab1b43f8 100644
--- a/crates/api_crud/src/tagline/mod.rs
+++ b/crates/api_crud/src/tagline/mod.rs
@@ -1,2 +1,3 @@
 pub mod create;
 pub mod list;
+pub mod update;
diff --git a/crates/api_crud/src/tagline/update.rs b/crates/api_crud/src/tagline/update.rs
new file mode 100644
index 000000000..fe5709375
--- /dev/null
+++ b/crates/api_crud/src/tagline/update.rs
@@ -0,0 +1,34 @@
+use activitypub_federation::config::Data;
+use actix_web::web::Json;
+use lemmy_api_common::{
+  context::LemmyContext,
+  tagline::{UpdateTagline, TaglineResponse},
+  utils::is_admin,
+};
+use lemmy_db_schema::{source::{
+  local_site::LocalSite,
+  tagline::{Tagline, TaglineUpdateForm},
+}, utils::naive_now};
+use lemmy_db_views::structs::LocalUserView;
+use lemmy_utils::error::LemmyError;
+
+#[tracing::instrument(skip(context))]
+pub async fn update_tagline(
+  data: Json<UpdateTagline>,
+  context: Data<LemmyContext>,
+  local_user_view: LocalUserView,
+) -> Result<Json<TaglineResponse>, LemmyError> {
+  let local_site = LocalSite::read(&mut context.pool()).await?;
+  // Make sure user is an admin
+  is_admin(&local_user_view)?;
+
+  let tagline_form = TaglineUpdateForm {
+    local_site_id: local_site.id,
+    content: data.content.to_string(),
+    updated: Some(naive_now()),
+  };
+
+  let tagline = Tagline::update(&mut context.pool(), data.id, &tagline_form).await?;
+
+  Ok(Json(TaglineResponse { tagline }))
+}
diff --git a/crates/db_schema/src/impls/tagline.rs b/crates/db_schema/src/impls/tagline.rs
index 9b3dffc13..d70d2fcd8 100644
--- a/crates/db_schema/src/impls/tagline.rs
+++ b/crates/db_schema/src/impls/tagline.rs
@@ -1,7 +1,7 @@
 use crate::{
-  newtypes::LocalSiteId,
+  newtypes::{LocalSiteId, TaglineId},
   schema::tagline::dsl::{local_site_id, published, tagline},
-  source::tagline::{Tagline, TaglineInsertForm},
+  source::tagline::{Tagline, TaglineInsertForm, TaglineUpdateForm},
   utils::{get_conn, limit_and_offset, DbPool},
 };
 use diesel::{insert_into, result::Error, ExpressionMethods, QueryDsl};
@@ -52,6 +52,18 @@ impl Tagline {
       .await
   }
 
+  pub async fn update(
+    pool: &mut DbPool<'_>,
+    tagline_id: TaglineId,
+    form: &TaglineUpdateForm,
+  ) -> Result<Self, Error> {
+    let conn = &mut get_conn(pool).await?;
+    diesel::update(tagline.find(tagline_id))
+      .set(form)
+      .get_result::<Self>(conn)
+      .await
+  }
+
   async fn clear(conn: &mut AsyncPgConnection) -> Result<usize, Error> {
     diesel::delete(tagline).execute(conn).await
   }
diff --git a/crates/db_schema/src/newtypes.rs b/crates/db_schema/src/newtypes.rs
index 96fc23ac6..ceadb2b54 100644
--- a/crates/db_schema/src/newtypes.rs
+++ b/crates/db_schema/src/newtypes.rs
@@ -152,6 +152,12 @@ pub struct LocalSiteId(i32);
 /// The custom emoji id.
 pub struct CustomEmojiId(i32);
 
+#[derive(Debug, Copy, Clone, Hash, Eq, PartialEq, Serialize, Deserialize, Default)]
+#[cfg_attr(feature = "full", derive(DieselNewType, TS))]
+#[cfg_attr(feature = "full", ts(export))]
+/// The tagline id.
+pub struct TaglineId(i32);
+
 #[cfg(feature = "full")]
 #[derive(Serialize, Deserialize)]
 #[serde(remote = "Ltree")]
diff --git a/crates/db_schema/src/source/tagline.rs b/crates/db_schema/src/source/tagline.rs
index c08d9f22c..6194d25c4 100644
--- a/crates/db_schema/src/source/tagline.rs
+++ b/crates/db_schema/src/source/tagline.rs
@@ -37,3 +37,12 @@ pub struct TaglineInsertForm {
   pub content: String,
   pub updated: Option<DateTime<Utc>>,
 }
+
+#[derive(Clone, Default)]
+#[cfg_attr(feature = "full", derive(Insertable, AsChangeset))]
+#[cfg_attr(feature = "full", diesel(table_name = tagline))]
+pub struct TaglineUpdateForm {
+  pub local_site_id: LocalSiteId,
+  pub content: String,
+  pub updated: Option<DateTime<Utc>>,
+}
\ No newline at end of file
diff --git a/src/api_routes_http.rs b/src/api_routes_http.rs
index 80b7ce630..305d66663 100644
--- a/src/api_routes_http.rs
+++ b/src/api_routes_http.rs
@@ -123,7 +123,11 @@ use lemmy_api_crud::{
     update::update_private_message,
   },
   site::{create::create_site, read::get_site, update::update_site},
-  tagline::{create::create_tagline, list::list_taglines},
+  tagline::{
+    create::create_tagline, 
+    list::list_taglines, 
+    update::update_tagline
+  },
   user::{create::register, delete::delete_account},
 };
 use lemmy_apub::api::{
@@ -370,6 +374,7 @@ pub fn config(cfg: &mut web::ServiceConfig, rate_limit: &RateLimitCell) {
         web::scope("/tagline")
           .wrap(rate_limit.message())
           .route("/", web::post().to(create_tagline))
+          .route("/", web::put().to(update_tagline))
           .route("/list", web::get().to(list_taglines)),
       ),
   );