diff --git a/.github/workflows/nvm-install-test.yml b/.github/workflows/nvm-install-test.yml
index 73cdced0..0db46ddf 100644
--- a/.github/workflows/nvm-install-test.yml
+++ b/.github/workflows/nvm-install-test.yml
@@ -15,6 +15,8 @@ permissions:
 
 jobs:
   matrix:
+    permissions:
+      contents: read
     runs-on: ubuntu-latest
     outputs:
       matrix: ${{ steps.matrix.outputs.matrix }}
@@ -43,6 +45,8 @@ jobs:
           fi
 
   test:
+    permissions:
+      contents: read
     needs: [matrix]
     runs-on: ubuntu-latest
     continue-on-error: ${{ matrix.ref == 'v0.40.0' }} # https://github.com/nvm-sh/nvm/issues/3405
@@ -101,6 +105,8 @@ jobs:
           fi
 
   finisher:
+    permissions:
+      contents: none
     runs-on: ubuntu-latest
     needs: [test]
     steps: