diff --git a/.github/workflows/build-windows-installer.yml b/.github/workflows/build-windows-installer.yml
index 63ae514..5e27c58 100644
--- a/.github/workflows/build-windows-installer.yml
+++ b/.github/workflows/build-windows-installer.yml
@@ -1,4 +1,6 @@
 name: Build UDSClient exe installer
+permissions:
+  contents: read
 on:
   push:
     branches: [ master, v4.0 ]