diff --git a/.github/workflows/build_esp32_c3.yml b/.github/workflows/build_esp32_c3.yml
index f9164b96a..a30cf33f1 100644
--- a/.github/workflows/build_esp32_c3.yml
+++ b/.github/workflows/build_esp32_c3.yml
@@ -7,6 +7,8 @@ on:
         required: true
         type: string
 
+permissions: read-all
+
 jobs:
   build-esp32-c3:
     runs-on: ubuntu-latest