diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 838f54c..0785dae 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
           restore-keys: |
             nix-store-${{ runner.os }}-
       - name: Install Nix
-        uses: cachix/install-nix-action@v26
+        uses: cachix/install-nix-action@v31
         with:
           extra_nix_config: |
             experimental-features = nix-command flakes
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 96efae8..687c339 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -15,7 +15,7 @@ jobs:
           restore-keys: |
             nix-store-${{ runner.os }}-
       - name: Install Nix
-        uses: cachix/install-nix-action@v26
+        uses: cachix/install-nix-action@v31
         with:
           extra_nix_config: |
             experimental-features = nix-command flakes