diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a42dcd2f..dd842edf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,7 +6,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@v25
+      - uses: cachix/install-nix-action@v26
       - run: nix build
   ci-matrix:
     runs-on: ubuntu-latest
@@ -24,7 +24,7 @@ jobs:
       - uses: bahmutov/npm-install@v1
         with:
           working-directory: modules/webapp
-      - uses: cachix/install-nix-action@v25
+      - uses: cachix/install-nix-action@v26
       - name: Install tailwindcss cli
         run: |
           nix profile install nixpkgs#tailwindcss
diff --git a/.github/workflows/release-nightly.yml b/.github/workflows/release-nightly.yml
index 96330a49..146cb828 100644
--- a/.github/workflows/release-nightly.yml
+++ b/.github/workflows/release-nightly.yml
@@ -23,7 +23,7 @@ jobs:
       - uses: bahmutov/npm-install@v1
         with:
           working-directory: modules/webapp
-      - uses: cachix/install-nix-action@v25
+      - uses: cachix/install-nix-action@v26
       - name: Install tailwindcss cli
         run: |
           nix profile install nixpkgs#tailwindcss
diff --git a/.github/workflows/website.yml b/.github/workflows/website.yml
index 75a0704d..3f3201ce 100644
--- a/.github/workflows/website.yml
+++ b/.github/workflows/website.yml
@@ -12,7 +12,7 @@ jobs:
           fetch-depth: 0
       - name: Set current version
         run:  echo "SHARRY_VERSION=$(cat version.sbt | grep version | cut -d= -f2 | xargs)" >> $GITHUB_ENV
-      - uses: cachix/install-nix-action@6004951b182f8860210c8d6f0d808ec5b1a33d28 # v25
+      - uses: cachix/install-nix-action@8887e596b4ee1134dae06b98d573bd674693f47c # v26
         with:
           nix_path: nixpkgs=channel:nixos-21.05
       - name: Print nixpkgs version