diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f6efd7d..42da790 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install nix
-        uses: cachix/install-nix-action@v25
+        uses: cachix/install-nix-action@v26
 
       - name: Set up cachix
         uses: cachix/cachix-action@v14
diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index ee6b7cb..4066c5a 100644
--- a/.github/workflows/update.yml
+++ b/.github/workflows/update.yml
@@ -13,7 +13,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install nix
-        uses: cachix/install-nix-action@v25
+        uses: cachix/install-nix-action@v26
 
       - name: Update lock file
         run: |