diff --git a/action.yml b/action.yml
index 94fe857..c0a463c 100644
--- a/action.yml
+++ b/action.yml
@@ -8,7 +8,7 @@ runs:
         install_url: https://github.com/numtide/nix-unstable-installer/releases/download/nix-2.5pre20211015_130284b/install
         extra_nix_config: |
           experimental-features = nix-command flakes
-    - run: nix flake lock --commit-lock-file
+    - run: nix flake update --commit-lock-file
       shell: bash
       env:
         GIT_AUTHOR_NAME: github-actions[bot]