diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a7a7b87..edd6983 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,6 +4,9 @@ on:
   push:
   pull_request:
 
+permissions:
+  contents: read
+
 jobs:
   build:
     name: Build (${{ matrix.os_name }})
diff --git a/.github/workflows/ghcr.yml b/.github/workflows/ghcr.yml
index f53e8c0..3b368ab 100644
--- a/.github/workflows/ghcr.yml
+++ b/.github/workflows/ghcr.yml
@@ -4,6 +4,10 @@ on:
   push:
     branches:
       - master
+
+permissions:
+  contents: read
+
 jobs:
   build:
     name: Build and publish to GHCR