diff --git a/.github/workflows/build_and_publish.yml b/.github/workflows/build_and_publish.yml
index c33dc0b..98d8ff8 100644
--- a/.github/workflows/build_and_publish.yml
+++ b/.github/workflows/build_and_publish.yml
@@ -16,6 +16,8 @@ env:
 
 jobs:
   tag-new-version:
+    permissions:
+      contents: write
     name: Tag new version
     runs-on: ubuntu-24.04
     outputs:
@@ -31,6 +33,10 @@ jobs:
           create_annotated_tag: true
 
   build-and-publish-docker-image:
+    permissions:
+      packages: write
+      contents: read
+
     name: Build and publish Docker image
     runs-on: ubuntu-24.04
     needs: tag-new-version
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c6eb867..9a9a171 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -4,6 +4,9 @@ name: CI
 on:
   push:
 
+permissions:
+  contents: read
+
 jobs:
   check:
     runs-on: ubuntu-24.04
diff --git a/.github/workflows/update-dependencies.yml b/.github/workflows/update-dependencies.yml
index c294780..feed356 100644
--- a/.github/workflows/update-dependencies.yml
+++ b/.github/workflows/update-dependencies.yml
@@ -5,6 +5,9 @@ on:
   schedule:
     - cron:  "0 4 * * WED"
 
+permissions:
+  contents: read
+  
 jobs:
   update-dependencies:
     runs-on: ubuntu-24.04