diff --git a/.github/workflows/alpine-test.yml b/.github/workflows/alpine-test.yml
index bd09a939b..513c65bb8 100644
--- a/.github/workflows/alpine-test.yml
+++ b/.github/workflows/alpine-test.yml
@@ -2,6 +2,9 @@ name: test-alpine
 
 on: [push, pull_request, workflow_dispatch]
 
+permissions:
+  contents: read
+
 jobs:
   test:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/cygwin-test.yml b/.github/workflows/cygwin-test.yml
index 278777907..572a9197e 100644
--- a/.github/workflows/cygwin-test.yml
+++ b/.github/workflows/cygwin-test.yml
@@ -2,6 +2,9 @@ name: test-cygwin
 
 on: [push, pull_request, workflow_dispatch]
 
+permissions:
+  contents: read
+
 jobs:
   test:
     runs-on: windows-latest
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index a0e81a993..ceba0dd85 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -2,6 +2,9 @@ name: Lint
 
 on: [push, pull_request, workflow_dispatch]
 
+permissions:
+  contents: read
+
 jobs:
   lint:
     runs-on: ubuntu-latest