diff --git a/manim/cli/init/commands.py b/manim/cli/init/commands.py
index 197e97bf71..e955949964 100644
--- a/manim/cli/init/commands.py
+++ b/manim/cli/init/commands.py
@@ -29,7 +29,7 @@
     "background_color": "BLACK",
     "background_opacity": 1,
     "scene_names": "Default",
-    "resolution": (854, 480),
+    "resolution": (480, 854),
 }
 
 __all__ = ["select_resolution", "update_cfg", "project", "scene"]
@@ -76,8 +76,8 @@ def update_cfg(cfg_dict: dict[str, Any], project_cfg_path: Path) -> None:
     cli_config = config["CLI"]
     for key, value in cfg_dict.items():
         if key == "resolution":
-            cli_config["pixel_width"] = str(value[0])
-            cli_config["pixel_height"] = str(value[1])
+            cli_config["pixel_height"] = str(value[0])
+            cli_config["pixel_width"] = str(value[1])
         else:
             cli_config[key] = str(value)