diff --git a/.github/workflows/build-app.yml b/.github/workflows/build-app.yml
index 9e9063a..5920c8a 100644
--- a/.github/workflows/build-app.yml
+++ b/.github/workflows/build-app.yml
@@ -18,7 +18,7 @@ defaults:
 
 jobs:
   format-swift:
-    runs-on: macos-latest
+    runs-on: macos-11
     steps:
       - name: "Checkout code"
         uses: actions/checkout@v2
diff --git a/.github/workflows/build-cve-2020-9986.yaml b/.github/workflows/build-cve-2020-9986.yaml
index 9213cf9..5aa2c56 100644
--- a/.github/workflows/build-cve-2020-9986.yaml
+++ b/.github/workflows/build-cve-2020-9986.yaml
@@ -16,7 +16,7 @@ defaults:
 
 jobs:
   lint-swiftlint:
-    runs-on: macos-latest
+    runs-on: macos-11
     steps:
       - name: "Checkout code"
         uses: actions/checkout@v2
diff --git a/.github/workflows/build-firmware.yaml b/.github/workflows/build-firmware.yaml
index 8d1b290..c940816 100644
--- a/.github/workflows/build-firmware.yaml
+++ b/.github/workflows/build-firmware.yaml
@@ -16,7 +16,7 @@ defaults:
 
 jobs:
   build-firmware:
-    runs-on: macos-latest
+    runs-on: macos-11
     steps:
       - uses: actions/checkout@v2
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 99070ac..6e22843 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -30,7 +30,7 @@ jobs:
 
   build-and-release:
     name: "Create release on GitHub"
-    runs-on: macos-latest
+    runs-on: macos-11
     env:
       APP: OpenHaystack
       PROJECT_DIR: OpenHaystack