diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index fc6c93d..5948522 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -9,6 +9,9 @@ on:
 env:
   CARGO_TERM_COLOR: always
 
+permissions:
+  contents: read
+
 jobs:
   build:
     name: Build for ${{ matrix.os }}