diff --git a/aider/args.py b/aider/args.py
index f228bbfd2..b952f62ed 100644
--- a/aider/args.py
+++ b/aider/args.py
@@ -509,6 +509,12 @@ def get_parser(default_config_files, git_root):
         help="Install the latest version from the main branch",
         default=False,
     )
+    group.add_argument(
+        "--upgrade",
+        action="store_true",
+        help="Upgrade aider to the latest version from PyPI",
+        default=False,
+    )
     group.add_argument(
         "--apply",
         metavar="FILE",
diff --git a/aider/main.py b/aider/main.py
index 5bda6c520..bb837ef43 100644
--- a/aider/main.py
+++ b/aider/main.py
@@ -434,6 +434,10 @@ def main(argv=None, input=None, output=None, force_git_root=None, return_coder=F
         success = install_from_main_branch(io)
         return 0 if success else 1
 
+    if args.upgrade:
+        success = install_upgrade(io)
+        return 0 if success else 1
+
     if args.check_update:
         check_version(io, verbose=args.verbose)