diff --git a/cpython-unix/build-main.py b/cpython-unix/build-main.py
index 2eb3f8c8..e6bcc036 100755
--- a/cpython-unix/build-main.py
+++ b/cpython-unix/build-main.py
@@ -62,7 +62,7 @@ def main():
     parser.add_argument(
         "--python",
         choices={"cpython-3.8", "cpython-3.9", "cpython-3.10", "cpython-3.11"},
-        default="cpython-3.10",
+        default="cpython-3.11",
         help="Python distribution to build",
     )
     parser.add_argument(
diff --git a/cpython-windows/build.py b/cpython-windows/build.py
index cc712070..7cd99bdd 100644
--- a/cpython-windows/build.py
+++ b/cpython-windows/build.py
@@ -2608,7 +2608,7 @@ def main():
     parser.add_argument(
         "--python",
         choices={"cpython-3.8", "cpython-3.9", "cpython-3.10", "cpython-3.11"},
-        default="cpython-3.10",
+        default="cpython-3.11",
         help="Python distribution to build",
     )
     parser.add_argument(