diff --git a/.github/workflows/check-licenses.yml b/.github/workflows/check-licenses.yml
index d9aa35630..f577d0940 100644
--- a/.github/workflows/check-licenses.yml
+++ b/.github/workflows/check-licenses.yml
@@ -6,6 +6,9 @@ on:
   pull_request:
     paths:
       - 'vendor'
+permissions:
+  contents: read
+
 jobs:
   build:
     name: Build
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a08dc76ed..47f59961b 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -8,6 +8,9 @@ on:
     paths-ignore:
       - 'docs/**'
       - '**.md'
+permissions:
+  contents: read
+
 jobs:
   build:
     name: Build
diff --git a/.github/workflows/wiki.yml b/.github/workflows/wiki.yml
index 05f2fd02b..2c8686d6a 100644
--- a/.github/workflows/wiki.yml
+++ b/.github/workflows/wiki.yml
@@ -5,8 +5,13 @@ on:
       - 'docs/*'
     branches:
       - master
+permissions:
+  contents: read
+
 jobs:
   build:
+    permissions:
+      contents: write  # for Git to git push
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@master