diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 42c74a7ce..d2fdc3809 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -1,5 +1,8 @@
 name: Main
 
+permissions:
+    contents: read
+
 on:
     push:
         branches: [main]
diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index 4efd046b0..7423cd3b2 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -1,5 +1,8 @@
 name: PR
 
+permissions:
+    contents: read
+
 on:
     pull_request:
         types: [opened, reopened, synchronize]
diff --git a/.github/workflows/pull_request_label.yml b/.github/workflows/pull_request_label.yml
index 8fd47c13f..d2da2f1ac 100644
--- a/.github/workflows/pull_request_label.yml
+++ b/.github/workflows/pull_request_label.yml
@@ -1,5 +1,8 @@
 name: PR label
 
+permissions:
+  contents: read
+
 on:
   pull_request:
     types: [labeled, unlabeled, opened, reopened, synchronize]