diff --git a/project_amber/app.py b/project_amber/app.py
index c37db6a..4b311c8 100644
--- a/project_amber/app.py
+++ b/project_amber/app.py
@@ -12,7 +12,7 @@
     handle_session_id_req
 from project_amber.handlers.task import handle_task_id_request, \
     handle_task_request
-from project_amber.handlers.users import signup
+from project_amber.handlers.users import signup, update_user_data
 
 app = Flask(__name__)
 app.config["SQLALCHEMY_DATABASE_URI"] = config["database"]
@@ -33,6 +33,7 @@ def middleware():
     methods=["GET", "POST"])
 app.add_url_rule("/api/task/<task_id>", "task_id", handle_task_id_request, \
     methods=["GET", "PATCH", "DELETE"])
+app.add_url_rule("/api/user", "user", update_user_data, methods=["PATCH"])
 app.add_url_rule("/api/session", "session", handle_session_req, methods=["GET"])
 app.add_url_rule("/api/session/<session_id>", "session_id", \
     handle_session_id_req, methods=["GET", "DELETE"])
diff --git a/project_amber/handlers/users.py b/project_amber/handlers/users.py
index 5774c52..62f6226 100644
--- a/project_amber/handlers/users.py
+++ b/project_amber/handlers/users.py
@@ -2,7 +2,21 @@
 
 from project_amber.const import EMPTY_RESP
 from project_amber.errors import BadRequest
-from project_amber.helpers.auth import addUser
+from project_amber.helpers.auth import addUser, updateUser
+
+def update_user_data():
+    """
+    User data PATCH request handler. Accepts JSON with these parameters:
+    ```
+    {
+        "password": "my_new_password"
+    }
+    ```
+    Returns HTTP 200 on success.
+    """
+    if "password" in request.json:
+        updateUser(password=request.json.get("password"))
+    return EMPTY_RESP
 
 def signup():
     """
diff --git a/project_amber/helpers/auth.py b/project_amber/helpers/auth.py
index 92db48a..510a90f 100644
--- a/project_amber/helpers/auth.py
+++ b/project_amber/helpers/auth.py
@@ -6,7 +6,7 @@
 
 from project_amber.const import MSG_USER_NOT_FOUND, MSG_USER_EXISTS
 from project_amber.db import db
-from project_amber.helpers import time
+from project_amber.helpers import time, LoginUser
 from project_amber.errors import Unauthorized, NotFound, Conflict
 from project_amber.logging import log
 from project_amber.models.auth import User, Session
@@ -33,6 +33,21 @@ def addUser(name: str, password: str) -> int:
     db.session.commit()
     return user.id
 
+def updateUser(**kwargs) -> int:
+    """
+    Updates user data in the database. Returns their ID on success.
+    """
+    user: LoginUser = request.user
+    user_record = db.session.query(User).filter_by(id=user.id).one()
+    for attribute in kwargs:
+        if attribute == "password":
+            user_record.password = hashpw(
+                prehash(kwargs["password"]),
+                gensalt()
+            ).decode()
+    db.session.commit()
+    return user.id
+
 def removeUser(uid: int) -> int:
     """
     Removes a user given their ID. Returns their ID on success.