diff --git a/.github/workflows/build-documentation.yml b/.github/workflows/build-documentation.yml
index c0468d3..6308c73 100644
--- a/.github/workflows/build-documentation.yml
+++ b/.github/workflows/build-documentation.yml
@@ -12,6 +12,9 @@ on:
       - synchronize
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   build-documentation:
     name: Build and deploy cFS documents
diff --git a/.github/workflows/build-run-app.yml b/.github/workflows/build-run-app.yml
index a3b6a58..f71f402 100644
--- a/.github/workflows/build-run-app.yml
+++ b/.github/workflows/build-run-app.yml
@@ -15,6 +15,9 @@ on:
     # 9:35 PM UTC every Sunday
     - cron:  '35 21 * * 0'
 
+permissions:
+  contents: read
+
 jobs:
   build-run:
     name: Build and run with startup msg verification
diff --git a/.github/workflows/format-check.yml b/.github/workflows/format-check.yml
index a47839d..bb03a3a 100644
--- a/.github/workflows/format-check.yml
+++ b/.github/workflows/format-check.yml
@@ -13,6 +13,9 @@ on:
       - synchronize
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   format-check:
     name: Run format check
diff --git a/.github/workflows/mcdc.yml b/.github/workflows/mcdc.yml
index 2a59a85..cca0ea9 100644
--- a/.github/workflows/mcdc.yml
+++ b/.github/workflows/mcdc.yml
@@ -12,6 +12,9 @@ on:
       - synchronize
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   mcdc:
     name: Run MCDC Analysis
diff --git a/.github/workflows/static-analysis.yml b/.github/workflows/static-analysis.yml
index 85dccf2..8f1159b 100644
--- a/.github/workflows/static-analysis.yml
+++ b/.github/workflows/static-analysis.yml
@@ -12,6 +12,9 @@ on:
       - synchronize
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   static-analysis:
     name: Static Analysis
diff --git a/.github/workflows/unit-test-coverage.yml b/.github/workflows/unit-test-coverage.yml
index 6172d6b..9afd714 100644
--- a/.github/workflows/unit-test-coverage.yml
+++ b/.github/workflows/unit-test-coverage.yml
@@ -15,6 +15,9 @@ on:
     # 9:25 PM UTC every Sunday
     - cron:  '25 21 * * 0'
 
+permissions:
+  contents: read
+
 jobs:
   unit-test-coverage:
     name: Run unit test and coverage