diff --git a/.github/workflows/tcl-lint.yaml b/.github/workflows/tcl-lint.yaml
index 9c78edbd..d616b680 100644
--- a/.github/workflows/tcl-lint.yaml
+++ b/.github/workflows/tcl-lint.yaml
@@ -6,6 +6,8 @@ jobs:
   tcl-lint:
     runs-on: ubuntu-latest
     name: Tcl Code Quality
+    permissions:
+      contents: read
 
     steps:
       - name: Checkout source