diff --git a/.github/workflows/linting.yml b/.github/workflows/linting.yml
index e6db744..caa2ef7 100644
--- a/.github/workflows/linting.yml
+++ b/.github/workflows/linting.yml
@@ -2,6 +2,10 @@ name: Linting
 
 on: [push, pull_request]
 
+
+permissions:
+  contents: read
+
 jobs:
   ruff-formatter:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index c1d707c..972c83b 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -5,6 +5,10 @@ on:
     types:
     - published  # Published through GitHub UI: https://github.com/amazon-science/bears/releases/new
 
+
+permissions:
+  contents: read
+
 jobs:
   pypi:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 9ce3801..03248b2 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -6,6 +6,10 @@ on:
   pull_request:
     branches: [ "main" ]
 
+
+permissions:
+  contents: read
+
 jobs:
   pytest:
     runs-on: ubuntu-latest