diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 39c52c0..eada9f4 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -28,7 +28,7 @@ jobs:
 
       - name: Install tree (Windows)
         if: matrix.os == 'windows-latest'
-        run: Install-Module PSScriptTools -scope CurrentUser -force
+        run: Install-Module PSScriptTools -scope CurrentUser -force -AllowClobber
 
       - name: Install tree (Linux)
         if: matrix.os == 'ubuntu-latest'
diff --git a/README.md b/README.md
index 675324f..e46ece9 100644
--- a/README.md
+++ b/README.md
@@ -20,11 +20,11 @@ positional arguments:
 options:
   -h, --help            show this help message and exit
   -b BRANCH, --branch BRANCH
-                        CPython branch (e.g. 3.12)
+                        CPython branch (e.g. 3.13)
 ```
 
 ## Example
 
 ```bash
-$ bootstrapper tr --branch 3.12
+$ bootstrapper tr --branch 3.13
 ```
diff --git a/bootstrapper/bootstrapper.py b/bootstrapper/bootstrapper.py
index 29aee58..e170745 100644
--- a/bootstrapper/bootstrapper.py
+++ b/bootstrapper/bootstrapper.py
@@ -25,7 +25,7 @@ class Bootstrapper:
     def __init__(
         self,
         language: str,
-        branch: str = "3.12",
+        branch: str,
         logger: logging.Logger = logging.getLogger(),
     ) -> None:
         self.language = language
@@ -199,7 +199,7 @@ def main() -> None:
         help="IETF language tag (e.g. tr, pt-br)",
     )
     parser.add_argument(
-        "-b", "--branch", type=str, default="3.12", help="CPython branch (e.g. 3.12)"
+        "-b", "--branch", type=str, default="3.13", help="CPython branch (e.g. 3.13)"
     )
     args = parser.parse_args()
     logger = logging.getLogger()