diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 87f4d20e..9b5f3cd1 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -34,7 +34,7 @@ jobs:
         with:
           persist-credentials: false
 
-      - uses: DeterminateSystems/nix-installer-action@v17
+      - uses: DeterminateSystems/nix-installer-action@v18
 
       - uses: cachix/cachix-action@v16
         with:
diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index defbecc0..33011bd8 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -28,7 +28,7 @@ jobs:
         with:
           persist-credentials: false
 
-      - uses: DeterminateSystems/nix-installer-action@v17
+      - uses: DeterminateSystems/nix-installer-action@v18
 
       - uses: cachix/cachix-action@v16
         with:
diff --git a/.github/workflows/update-flake.yml b/.github/workflows/update-flake.yml
index d1a8f55c..a271878f 100644
--- a/.github/workflows/update-flake.yml
+++ b/.github/workflows/update-flake.yml
@@ -17,7 +17,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           ref: ${{ matrix.branch }}
-      - uses: DeterminateSystems/nix-installer-action@v17
+      - uses: DeterminateSystems/nix-installer-action@v18
 
       - id: generate-token
         uses: actions/create-github-app-token@v2