diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
index 83857121..87c2dc0c 100644
--- a/.github/workflows/integration.yml
+++ b/.github/workflows/integration.yml
@@ -126,7 +126,7 @@ jobs:
   # THE FOLLOWING TEST IS DISABLED FOR THE TIME BENG UNTIL THIS ISSUE WITH NIXOS TESTS ON DARWIN GETS RESOLVED: https://github.com/NixOS/nixpkgs/issues/294725
   #integration-tests-aarch64-darwin:
   #  name: Integration tests aarch64-darwin
-  #  runs-on: warp-macos-13-arm64-6x
+  #  runs-on: warp-macos-26-arm64-6x
   #  steps:
   #    - uses: actions/checkout@v7
   #    - uses: cachix/install-nix-action@v30
diff --git a/.github/workflows/nix-mac.yaml b/.github/workflows/nix-mac.yaml
index 5152d429..0fe61ae9 100644
--- a/.github/workflows/nix-mac.yaml
+++ b/.github/workflows/nix-mac.yaml
@@ -5,6 +5,7 @@ on:
   push:
     branches:
       - main
+      # - upgrade-ci-macos
   workflow_call:
 
 concurrency:
@@ -14,7 +15,7 @@ concurrency:
 jobs:
   aarch64-darwin---default:
     name: Build aarch64-darwin.default
-    runs-on: warp-macos-13-arm64-6x
+    runs-on: warp-macos-26-arm64-6x
     needs:
       - aarch64-darwin---rosenpass
     steps:
@@ -30,7 +31,7 @@ jobs:
         run: nix build .#packages.aarch64-darwin.default --print-build-logs
   aarch64-darwin---release-package:
     name: Build aarch64-darwin.release-package
-    runs-on: warp-macos-13-arm64-6x
+    runs-on: warp-macos-26-arm64-6x
     needs:
       - aarch64-darwin---rosenpass
       - aarch64-darwin---rp
@@ -48,7 +49,7 @@ jobs:
         run: nix build .#packages.aarch64-darwin.release-package --print-build-logs
   aarch64-darwin---rosenpass:
     name: Build aarch64-darwin.rosenpass
-    runs-on: warp-macos-13-arm64-6x
+    runs-on: warp-macos-26-arm64-6x
     needs: []
     steps:
       - uses: actions/checkout@v7
@@ -63,7 +64,7 @@ jobs:
         run: nix build .#packages.aarch64-darwin.rosenpass --print-build-logs
   aarch64-darwin---rp:
     name: Build aarch64-darwin.rp
-    runs-on: warp-macos-13-arm64-6x
+    runs-on: warp-macos-26-arm64-6x
     needs: []
     steps:
       - uses: actions/checkout@v7
@@ -78,7 +79,7 @@ jobs:
         run: nix build .#packages.aarch64-darwin.rp --print-build-logs
   aarch64-darwin---rosenpass-oci-image:
     name: Build aarch64-darwin.rosenpass-oci-image
-    runs-on: warp-macos-13-arm64-6x
+    runs-on: warp-macos-26-arm64-6x
     needs:
       - aarch64-darwin---rosenpass
     steps:
@@ -94,7 +95,7 @@ jobs:
         run: nix build .#packages.aarch64-darwin.rosenpass-oci-image --print-build-logs
   aarch64-darwin---check:
     name: Run Nix checks on aarch64-darwin
-    runs-on: warp-macos-13-arm64-6x
+    runs-on: warp-macos-26-arm64-6x
     steps:
       - uses: actions/checkout@v7
       - uses: cachix/install-nix-action@v30
diff --git a/.github/workflows/qc-mac.yaml b/.github/workflows/qc-mac.yaml
index 743c0121..beb2d4af 100644
--- a/.github/workflows/qc-mac.yaml
+++ b/.github/workflows/qc-mac.yaml
@@ -1,7 +1,9 @@
 name: QC Mac
 on:
   push:
-    branches: [main]
+    branches:
+      - main
+      # - upgrade-ci-macos
   workflow_call:
 
 concurrency:
@@ -14,7 +16,7 @@ permissions:
 
 jobs:
   cargo-test-mac:
-    runs-on: warp-macos-13-arm64-6x
+    runs-on: warp-macos-26-arm64-6x
     steps:
       - uses: actions/checkout@v7
       - uses: actions/cache@v5