diff --git a/.forgejo/workflows/diff.yaml b/.forgejo/workflows/diff.yaml
index bf0804c7..69a07961 100644
--- a/.forgejo/workflows/diff.yaml
+++ b/.forgejo/workflows/diff.yaml
@@ -14,7 +14,7 @@ jobs:
           - "marie-desktop"
     steps:
       - name: Install Nix
-        uses: https://github.com/cachix/install-nix-action@v27
+        uses: https://github.com/cachix/install-nix-action@v30
         with:
           extra_nix_config: |
             extra-substituters = https://uwumarie.cachix.org
diff --git a/.forgejo/workflows/nvidia-driver.yaml b/.forgejo/workflows/nvidia-driver.yaml
index ef96b6a0..1ae556d5 100644
--- a/.forgejo/workflows/nvidia-driver.yaml
+++ b/.forgejo/workflows/nvidia-driver.yaml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Install Nix
-        uses: https://github.com/cachix/install-nix-action@v27
+        uses: https://github.com/cachix/install-nix-action@v30
         with:
           extra_nix_config: |
             extra-substituters = https://uwumarie.cachix.org
diff --git a/.forgejo/workflows/update-flake-lock.yaml b/.forgejo/workflows/update-flake-lock.yaml
index 2a37bd5b..415695b3 100644
--- a/.forgejo/workflows/update-flake-lock.yaml
+++ b/.forgejo/workflows/update-flake-lock.yaml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Install Nix
-        uses: https://github.com/cachix/install-nix-action@v27
+        uses: https://github.com/cachix/install-nix-action@v30
         with:
           extra_nix_config: |
             extra-substituters = https://uwumarie.cachix.org
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index c7e00736..cae5b201 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -26,7 +26,7 @@ jobs:
     if: needs.pre_ci.outputs.continue
     steps:
       - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@ba0dd844c9180cbf77aa72a116d6fbc515d0e87b # v27
+      - uses: cachix/install-nix-action@08dcb3a5e62fa31e2da3d490afc4176ef55ecd72 # v30
       - name: Build ${{ matrix.package }}
         env:
           CACHIX_AUTH_TOKEN: ${{ secrets.CACHIX_AUTH_TOKEN }}