diff --git a/.forgejo/workflows/cachix.yml b/.forgejo/workflows/cachix.yml
index 751f6033..8bbdf9dd 100644
--- a/.forgejo/workflows/cachix.yml
+++ b/.forgejo/workflows/cachix.yml
@@ -20,7 +20,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - run: apt update && apt install -y sudo
-      - uses: https://github.com/cachix/install-nix-action@v30
+      - uses: https://github.com/cachix/install-nix-action@v31
         with:
           enable_kvm: false
           github_access_token: '${{ secrets.ACCESS_TOKEN_GITHUB }}'
diff --git a/.forgejo/workflows/update.yaml b/.forgejo/workflows/update.yaml
index ddc38c72..d91cc6f4 100644
--- a/.forgejo/workflows/update.yaml
+++ b/.forgejo/workflows/update.yaml
@@ -14,7 +14,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - run: apt update && apt install -y sudo
-      - uses: https://github.com/cachix/install-nix-action@v30
+      - uses: https://github.com/cachix/install-nix-action@v31
         with:
           enable_kvm: false
           github_access_token: '${{ secrets.ACCESS_TOKEN_GITHUB }}'
@@ -40,7 +40,7 @@ jobs:
         with:
           name: flake.lock
       - run: apt update && apt install -y sudo
-      - uses: https://github.com/cachix/install-nix-action@v30
+      - uses: https://github.com/cachix/install-nix-action@v31
         with:
           enable_kvm: false
           github_access_token: '${{ secrets.ACCESS_TOKEN_GITHUB }}'