diff --git a/.github/workflows/update-nixpkgs.yml b/.github/workflows/update-nixpkgs.yml
index d2a9ee0..8f6d682 100644
--- a/.github/workflows/update-nixpkgs.yml
+++ b/.github/workflows/update-nixpkgs.yml
@@ -14,7 +14,7 @@ jobs:
       with:
         nix_path: nixpkgs=channel:nixos-unstable
     - name: Update snapshot commit
-      run: 'nix flake lock --update-input nixpkgs'
+      run: 'nix flake update nixpkgs'
     - name: Create Pull Request
       uses: peter-evans/create-pull-request@v5
       with:
diff --git a/.github/workflows/update-snapshot.yml b/.github/workflows/update-snapshot.yml
index d79c4ff..94f8636 100644
--- a/.github/workflows/update-snapshot.yml
+++ b/.github/workflows/update-snapshot.yml
@@ -14,9 +14,9 @@ jobs:
       with:
         nix_path: nixpkgs=channel:nixos-unstable
     - name: Update release snapshot commit
-      run: 'nix flake lock --update-input emacs-release-snapshot'
+      run: 'nix flake update emacs-release-snapshot'
     - name: Update HEAD snapshot commit
-      run: 'nix flake lock --update-input emacs-snapshot'
+      run: 'nix flake update emacs-snapshot'
     - name: Create Pull Request
       uses: peter-evans/create-pull-request@v5
       with: