diff --git a/.github/workflows/ci-collector.yml b/.github/workflows/ci-collector.yml
index 045144827d..17bc36bf4d 100644
--- a/.github/workflows/ci-collector.yml
+++ b/.github/workflows/ci-collector.yml
@@ -14,6 +14,9 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+
 jobs:
   test:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/ci-nodejs.yml b/.github/workflows/ci-nodejs.yml
index 73707f48b7..fe6bc7c6ac 100644
--- a/.github/workflows/ci-nodejs.yml
+++ b/.github/workflows/ci-nodejs.yml
@@ -14,6 +14,9 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/ci-python.yml b/.github/workflows/ci-python.yml
index 50e5a929a9..3cd9648579 100644
--- a/.github/workflows/ci-python.yml
+++ b/.github/workflows/ci-python.yml
@@ -20,6 +20,9 @@ env:
   # https://github.com/open-telemetry/opentelemetry-python-contrib/blob/main/.github/workflows/test.yml#L9
   CORE_REPO_SHA: v1.19.0
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/ci-shellcheck.yml b/.github/workflows/ci-shellcheck.yml
index 834d93b864..dc0bf5bcb2 100644
--- a/.github/workflows/ci-shellcheck.yml
+++ b/.github/workflows/ci-shellcheck.yml
@@ -2,6 +2,9 @@ name: "Continuous Build (shellcheck)"
 
 on: [push, pull_request]
 
+permissions:
+  contents: read
+
 jobs:
   shellcheck:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/ci-terraform.yml b/.github/workflows/ci-terraform.yml
index ae158b40fd..7e20857899 100644
--- a/.github/workflows/ci-terraform.yml
+++ b/.github/workflows/ci-terraform.yml
@@ -14,6 +14,9 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+
 jobs:
   check-terraform-syntax:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index e1dd5de486..41a1e9cf02 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -20,6 +20,9 @@ on:
   schedule:
     - cron: '37 10 * * 2'
 
+permissions:
+  contents: read
+
 jobs:
   analyze:
     name: Analyze