diff --git a/.github/workflows/nix-build.yml b/.github/workflows/nix-build.yml
index 4049a15e9..1bc96fec6 100644
--- a/.github/workflows/nix-build.yml
+++ b/.github/workflows/nix-build.yml
@@ -35,7 +35,7 @@ jobs:
           persist-credentials: false
 
       - name: Install Nix
-        uses: cachix/install-nix-action@v30
+        uses: cachix/install-nix-action@v31
         with:
           nix_path: nixpkgs=channel:nixos-unstable
 
diff --git a/.github/workflows/update-npm-deps-hash.yml b/.github/workflows/update-npm-deps-hash.yml
index 14a2e7c76..b6a5b0b32 100644
--- a/.github/workflows/update-npm-deps-hash.yml
+++ b/.github/workflows/update-npm-deps-hash.yml
@@ -23,7 +23,7 @@ jobs:
           token: ${{ secrets.PUSH_TOKEN }}
 
       - name: Install Nix
-        uses: cachix/install-nix-action@v30
+        uses: cachix/install-nix-action@v31
         with:
           nix_path: nixpkgs=channel:nixos-unstable