diff --git a/.gitea/workflows/analysis.yml b/.gitea/workflows/analysis.yml
index 1f1d379..64fffa3 100644
--- a/.gitea/workflows/analysis.yml
+++ b/.gitea/workflows/analysis.yml
@@ -6,6 +6,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Install dependencies for Nix setup action
+        run: |
+          apt update -y
+          apt install sudo -y  
       - uses: http://github.com/cachix/install-nix-action@v18
       - uses: http://github.com/cachix/cachix-action@v12
         with:
diff --git a/.gitea/workflows/deploy.yml b/.gitea/workflows/deploy.yml
index acc4ae2..729ed59 100644
--- a/.gitea/workflows/deploy.yml
+++ b/.gitea/workflows/deploy.yml
@@ -10,6 +10,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
+      - name: Install dependencies for Nix setup action
+        run: |
+          apt update -y
+          apt install sudo -y  
       - uses: cachix/install-nix-action@v31
         with:
           install_url: https://releases.nixos.org/nix/nix-2.28.5/install
diff --git a/modules/gitea/thea/default.nix b/modules/gitea/thea/default.nix
index 421cad6..620d0c1 100644
--- a/modules/gitea/thea/default.nix
+++ b/modules/gitea/thea/default.nix
@@ -1,5 +1,6 @@
-{nodes, ...}:let
+{nodes, inputs, pkgs, ...}:let
   sin-address = "192.168.1.14";
+  unstable = import inputs.unstable {system = pkgs.system;};
 in{
   imports = [
     ./virtualisation.nix
@@ -10,6 +11,8 @@ in{
     destination = "${sin-address}:22";  
   }];
 
+  services.gitea-actions-runner.package = unstable.gitea-actions-runner;
+
   services.gitea-actions-runner.instances = {
     "gitea.shobu.fr-runner" = {
       enable = true;
@@ -18,9 +21,9 @@ in{
       token = "uEDPBW6Z9oItAKRtloVwis0LkPbD4OmV2w5esOhW";
       labels = [
         # provide a debian base with nodejs for actions
-        "debian-latest:docker://node:18-bullseye"
+        "debian-latest:docker://node:20-bullseye"
         # fake the ubuntu name, because node provides no ubuntu builds
-        "ubuntu-latest:docker://node:18-bullseye"
+        "ubuntu-latest:docker://node:20-bullseye"
         # provide native execution on the host
         #"native:host"
       ]