diff --git a/.github/workflows/build-multi-stage.yaml b/.github/workflows/build-multi-stage.yaml
index c0e83a07c..9b312a296 100644
--- a/.github/workflows/build-multi-stage.yaml
+++ b/.github/workflows/build-multi-stage.yaml
@@ -5,6 +5,9 @@ on:
   pull_request:
     branches:
       - '*'
+permissions:
+  contents: read
+
 jobs:
   codespell:
     name: multi-arch-build
diff --git a/.github/workflows/codespell.yaml b/.github/workflows/codespell.yaml
index 8dd40f6c2..29e4711d9 100644
--- a/.github/workflows/codespell.yaml
+++ b/.github/workflows/codespell.yaml
@@ -7,6 +7,9 @@ on:
   pull_request:
     branches:
       - '*'
+permissions:
+  contents: read
+
 jobs:
   codespell:
     name: codespell
diff --git a/.github/workflows/commitlint.yaml b/.github/workflows/commitlint.yaml
index 60aa16efe..05338adac 100644
--- a/.github/workflows/commitlint.yaml
+++ b/.github/workflows/commitlint.yaml
@@ -5,6 +5,9 @@ on:
   pull_request:
     branches:
       - '*'
+permissions:
+  contents: read
+
 jobs:
   commitlint:
     name: commitlint
diff --git a/.github/workflows/go-test.yaml b/.github/workflows/go-test.yaml
index dbd97026c..17c3a685e 100644
--- a/.github/workflows/go-test.yaml
+++ b/.github/workflows/go-test.yaml
@@ -5,6 +5,9 @@ on:
   pull_request:
     branches:
       - '*'
+permissions:
+  contents: read
+
 jobs:
   go-test:
     name: go-test
diff --git a/.github/workflows/golangci-lint.yaml b/.github/workflows/golangci-lint.yaml
index bf7c5ee16..37ac0b376 100644
--- a/.github/workflows/golangci-lint.yaml
+++ b/.github/workflows/golangci-lint.yaml
@@ -5,6 +5,9 @@ on:
   pull_request:
     branches:
       - '*'
+permissions:
+  contents: read
+
 jobs:
   golangci-lint:
     name: golangci-lint
diff --git a/.github/workflows/lint-extras.yaml b/.github/workflows/lint-extras.yaml
index ee6b647fd..23afffa16 100644
--- a/.github/workflows/lint-extras.yaml
+++ b/.github/workflows/lint-extras.yaml
@@ -5,6 +5,9 @@ on:
   pull_request:
     branches:
       - '*'
+permissions:
+  contents: read
+
 jobs:
   lint-extras:
     name: lint-extras
diff --git a/.github/workflows/mod-check.yaml b/.github/workflows/mod-check.yaml
index d6e5b1a74..10e22d783 100644
--- a/.github/workflows/mod-check.yaml
+++ b/.github/workflows/mod-check.yaml
@@ -5,6 +5,9 @@ on:
   pull_request:
     branches:
       - '*'
+permissions:
+  contents: read
+
 jobs:
   mod-check:
     name: mod-check
diff --git a/.github/workflows/publish-artifacts.yaml b/.github/workflows/publish-artifacts.yaml
index bb31d2900..b5a53c4b1 100644
--- a/.github/workflows/publish-artifacts.yaml
+++ b/.github/workflows/publish-artifacts.yaml
@@ -9,6 +9,9 @@ on:
       - devel
       # Push events to branches matching refs/heads/release-v*
       - 'release-v*'
+permissions:
+  contents: read
+
 jobs:
   push:
     name: Publish artifacts
diff --git a/.github/workflows/retest.yml b/.github/workflows/retest.yaml
similarity index 93%
rename from .github/workflows/retest.yml
rename to .github/workflows/retest.yaml
index 0ff69338b..3299e0dcb 100644
--- a/.github/workflows/retest.yml
+++ b/.github/workflows/retest.yaml
@@ -5,6 +5,10 @@ on:
   schedule:
     # Run the retest action every 30 minutes
     - cron: "30 * * * *"
+
+permissions:
+  contents: read
+
 jobs:
   retest:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/stale.yaml b/.github/workflows/stale.yaml
index 7fbfaa013..07c8e7ae2 100644
--- a/.github/workflows/stale.yaml
+++ b/.github/workflows/stale.yaml
@@ -7,8 +7,14 @@ on:
     # Run the stalebot every day at 9pm UTC
     - cron: "00 21 * * *"
 # yamllint disable rule:line-length
+permissions:
+  contents: read
+
 jobs:
   stale:
+    permissions:
+      issues: write  # for actions/stale to close stale issues
+      pull-requests: write  # for actions/stale to close stale PRs
     runs-on: ubuntu-18.04
     if: github.repository == 'ceph/ceph-csi'
     steps:
diff --git a/.github/workflows/test-retest-action.yaml b/.github/workflows/test-retest-action.yaml
index 6adba100e..3d732370d 100644
--- a/.github/workflows/test-retest-action.yaml
+++ b/.github/workflows/test-retest-action.yaml
@@ -5,6 +5,9 @@ on:
   pull_request:
     branches: [devel]
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest