diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 8e87341..2e92c2a 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -4,7 +4,7 @@
 
 repos:
 -   repo: https://github.com/python/black
-    rev: 20.8b1
+    rev: 22.3.0
     hooks:
     - id: black
 -   repo: https://github.com/fsfe/reuse-tool
diff --git a/cascadetoml.py b/cascadetoml.py
old mode 100644
new mode 100755
index f309cc4..bf3b6c5
--- a/cascadetoml.py
+++ b/cascadetoml.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 # SPDX-FileCopyrightText: Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
 #
 # SPDX-License-Identifier: MIT
diff --git a/pyproject.toml b/pyproject.toml
index 9d254eb..450ac37 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,7 +20,8 @@ requires = [
     "parse",
     "tabulate",
     "tomlkit>=0.8.0",
-    "typer"
+    "typer==0.4.0",
+    "click==8.0.4"
 ]
 
 [tool.flit.scripts]