diff --git a/CHANGELOG.md b/CHANGELOG.md
index 41fd811d..9a1dd073 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ and this project adheres to
 ### Changed
 
 - 🚸(backend) use unaccented full name for user search #1637
+- 🌐(backend) internationalize demo #1644
 
 ## [4.1.0] - 2025-12-09
 
diff --git a/src/backend/demo/management/commands/create_demo.py b/src/backend/demo/management/commands/create_demo.py
index 3681c378..a288a619 100644
--- a/src/backend/demo/management/commands/create_demo.py
+++ b/src/backend/demo/management/commands/create_demo.py
@@ -17,7 +17,8 @@ from core import models
 
 from demo import defaults
 
-fake = Faker()
+languages = [x for (x, y) in settings.LANGUAGES]
+fake = Faker(languages)
 
 logger = logging.getLogger("impress.commands.demo.create_demo")
 
@@ -127,7 +128,7 @@ def create_demo(stdout):
                     is_staff=False,
                     short_name=first_name,
                     full_name=f"{first_name:s} {random.choice(last_names):s}",
-                    language=random.choice(settings.LANGUAGES)[0],
+                    language=random.choice(languages),
                 )
             )
         queue.flush()
@@ -179,8 +180,7 @@ def create_demo(stdout):
                     is_superuser=False,
                     is_active=True,
                     is_staff=False,
-                    language=dev_user["language"]
-                    or random.choice(settings.LANGUAGES)[0],
+                    language=dev_user["language"] or random.choice(languages),
                 )
             )