diff --git a/src/api/v1/auth/login.rs b/src/api/v1/auth/login.rs
index c3e8bc7..81ef117 100644
--- a/src/api/v1/auth/login.rs
+++ b/src/api/v1/auth/login.rs
@@ -9,10 +9,12 @@ use uuid::Uuid;
 
 use crate::{
     Data,
-    api::v1::auth::{EMAIL_REGEX, PASSWORD_REGEX, USERNAME_REGEX},
     error::Error,
     schema::*,
-    utils::{generate_access_token, generate_refresh_token, refresh_token_cookie},
+    utils::{
+        EMAIL_REGEX, PASSWORD_REGEX, USERNAME_REGEX, generate_access_token, generate_refresh_token,
+        refresh_token_cookie,
+    },
 };
 
 use super::Response;
diff --git a/src/api/v1/auth/mod.rs b/src/api/v1/auth/mod.rs
index be9cc35..1689d2b 100644
--- a/src/api/v1/auth/mod.rs
+++ b/src/api/v1/auth/mod.rs
@@ -23,15 +23,6 @@ struct Response {
     access_token: String,
 }
 
-static EMAIL_REGEX: LazyLock<Regex> = LazyLock::new(|| {
-    Regex::new(r"[-A-Za-z0-9!#$%&'*+/=?^_`{|}~]+(?:\.[-A-Za-z0-9!#$%&'*+/=?^_`{|}~]+)*@(?:[A-Za-z0-9](?:[-A-Za-z0-9]*[A-Za-z0-9])?\.)+[A-Za-z0-9](?:[-A-Za-z0-9]*[A-Za-z0-9])?").unwrap()
-});
-
-static USERNAME_REGEX: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"^[a-z0-9_.-]+$").unwrap());
-
-// Password is expected to be hashed using SHA3-384
-static PASSWORD_REGEX: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"[0-9a-f]{96}").unwrap());
-
 pub fn web() -> Scope {
     web::scope("/auth")
         .service(register::res)
diff --git a/src/api/v1/auth/register.rs b/src/api/v1/auth/register.rs
index 66be90a..0e170ee 100644
--- a/src/api/v1/auth/register.rs
+++ b/src/api/v1/auth/register.rs
@@ -13,14 +13,16 @@ use uuid::Uuid;
 use super::Response;
 use crate::{
     Data,
-    api::v1::auth::{EMAIL_REGEX, PASSWORD_REGEX, USERNAME_REGEX},
     error::Error,
     schema::{
         access_tokens::{self, dsl as adsl},
         refresh_tokens::{self, dsl as rdsl},
         users::{self, dsl as udsl},
     },
-    utils::{generate_access_token, generate_refresh_token, refresh_token_cookie},
+    utils::{
+        EMAIL_REGEX, PASSWORD_REGEX, USERNAME_REGEX, generate_access_token, generate_refresh_token,
+        refresh_token_cookie,
+    },
 };
 
 #[derive(Deserialize)]
@@ -68,9 +70,11 @@ pub async fn res(
     data: web::Data<Data>,
 ) -> Result<HttpResponse, Error> {
     if !data.config.instance.registration {
-        return Err(Error::Forbidden("registration is disabled on this instance".to_string()))
+        return Err(Error::Forbidden(
+            "registration is disabled on this instance".to_string(),
+        ));
     }
-    
+
     let uuid = Uuid::now_v7();
 
     if !EMAIL_REGEX.is_match(&account_information.email) {
diff --git a/src/api/v1/me/mod.rs b/src/api/v1/me/mod.rs
index 58eaa02..605eb1c 100644
--- a/src/api/v1/me/mod.rs
+++ b/src/api/v1/me/mod.rs
@@ -1,5 +1,5 @@
 use actix_multipart::form::{MultipartForm, json::Json as MpJson, tempfile::TempFile};
-use actix_web::{get, patch, web, HttpRequest, HttpResponse, Scope};
+use actix_web::{HttpRequest, HttpResponse, Scope, get, patch, web};
 use serde::Deserialize;
 
 use crate::{
@@ -9,9 +9,7 @@ use crate::{
 mod servers;
 
 pub fn web() -> Scope {
-    web::scope("/me")
-        .service(get)
-        .service(update)
+    web::scope("/me").service(get).service(update)
 }
 
 #[get("")]
@@ -76,15 +74,15 @@ pub async fn update(
 
     if let Some(new_info) = form.json {
         if let Some(username) = &new_info.username {
-            todo!();
+            me.set_username(&mut conn, username.clone()).await?;
         }
 
         if let Some(display_name) = &new_info.display_name {
-            todo!();
+            me.set_display_name(&mut conn, display_name.clone()).await?;
         }
 
         if let Some(email) = &new_info.email {
-            todo!();
+            me.set_email(&mut conn, email.to_string()).await?;
         }
     }
 
diff --git a/src/structs.rs b/src/structs.rs
index 50b5ac5..e4d2610 100644
--- a/src/structs.rs
+++ b/src/structs.rs
@@ -12,7 +12,10 @@ use url::Url;
 use uuid::Uuid;
 
 use crate::{
-    error::Error, schema::*, utils::{generate_refresh_token, image_check, order_by_is_above}, Conn, Data
+    Conn, Data,
+    error::Error,
+    schema::*,
+    utils::{EMAIL_REGEX, USERNAME_REGEX, generate_refresh_token, image_check, order_by_is_above},
 };
 
 pub trait HasUuid {
@@ -423,11 +426,7 @@ impl Guild {
         futures::future::try_join_all(guild_futures).await
     }
 
-    pub async fn new(
-        conn: &mut Conn,
-        name: String,
-        owner_uuid: Uuid,
-    ) -> Result<Self, Error> {
+    pub async fn new(conn: &mut Conn, name: String, owner_uuid: Uuid) -> Result<Self, Error> {
         let guild_uuid = Uuid::now_v7();
 
         let guild_builder = GuildBuilder {
@@ -856,6 +855,64 @@ impl Me {
 
         Ok(())
     }
+
+    pub async fn set_username(
+        &mut self,
+        conn: &mut Conn,
+        new_username: String,
+    ) -> Result<(), Error> {
+        if !USERNAME_REGEX.is_match(&new_username) {
+            return Err(Error::BadRequest("Invalid username".to_string()));
+        }
+
+        use users::dsl;
+        update(users::table)
+            .filter(dsl::uuid.eq(self.uuid))
+            .set(dsl::username.eq(new_username.as_str()))
+            .execute(conn)
+            .await?;
+
+        self.username = new_username;
+
+        Ok(())
+    }
+
+    pub async fn set_display_name(
+        &mut self,
+        conn: &mut Conn,
+        new_display_name: String,
+    ) -> Result<(), Error> {
+        use users::dsl;
+        update(users::table)
+            .filter(dsl::uuid.eq(self.uuid))
+            .set(dsl::display_name.eq(new_display_name.as_str()))
+            .execute(conn)
+            .await?;
+
+        self.display_name = Some(new_display_name);
+
+        Ok(())
+    }
+
+    pub async fn set_email(&mut self, conn: &mut Conn, new_email: String) -> Result<(), Error> {
+        if !EMAIL_REGEX.is_match(&new_email) {
+            return Err(Error::BadRequest("Invalid username".to_string()));
+        }
+
+        use users::dsl;
+        update(users::table)
+            .filter(dsl::uuid.eq(self.uuid))
+            .set((
+                dsl::email.eq(new_email.as_str()),
+                dsl::email_verified.eq(false),
+            ))
+            .execute(conn)
+            .await?;
+
+        self.email = new_email;
+
+        Ok(())
+    }
 }
 
 #[derive(Deserialize)]
diff --git a/src/utils.rs b/src/utils.rs
index 3edaab8..143b544 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -1,3 +1,5 @@
+use std::sync::LazyLock;
+
 use actix_web::{
     cookie::{Cookie, SameSite, time::Duration},
     http::header::HeaderMap,
@@ -7,9 +9,24 @@ use bindet::FileType;
 use getrandom::fill;
 use hex::encode;
 use redis::RedisError;
+use regex::Regex;
 use serde::Serialize;
 
-use crate::{error::Error, structs::{HasIsAbove, HasUuid}, Data};
+use crate::{
+    Data,
+    error::Error,
+    structs::{HasIsAbove, HasUuid},
+};
+
+pub static EMAIL_REGEX: LazyLock<Regex> = LazyLock::new(|| {
+    Regex::new(r"[-A-Za-z0-9!#$%&'*+/=?^_`{|}~]+(?:\.[-A-Za-z0-9!#$%&'*+/=?^_`{|}~]+)*@(?:[A-Za-z0-9](?:[-A-Za-z0-9]*[A-Za-z0-9])?\.)+[A-Za-z0-9](?:[-A-Za-z0-9]*[A-Za-z0-9])?").unwrap()
+});
+
+pub static USERNAME_REGEX: LazyLock<Regex> =
+    LazyLock::new(|| Regex::new(r"^[a-z0-9_.-]+$").unwrap());
+
+// Password is expected to be hashed using SHA3-384
+pub static PASSWORD_REGEX: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"[0-9a-f]{96}").unwrap());
 
 pub fn get_auth_header(headers: &HeaderMap) -> Result<&str, Error> {
     let auth_token = headers.get(actix_web::http::header::AUTHORIZATION);