diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index d9a23f34..aa5ad405 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -9,6 +9,7 @@ repos:
     -   id: check-builtin-literals
     -   id: check-case-conflict
     -   id: check-docstring-first
+    -   id: check-executables-have-shebangs
     -   id: check-json
         exclude: tsconfig.json
     -   id: check-toml
diff --git a/pyscriptjs/examples/webgl/raycaster/index.html b/pyscriptjs/examples/webgl/raycaster/index.html
old mode 100755
new mode 100644
diff --git a/pyscriptjs/examples/webgl/raycaster/style.css b/pyscriptjs/examples/webgl/raycaster/style.css
old mode 100755
new mode 100644