diff --git a/.github/workflows/nix-flake.yml b/.github/workflows/nix-flake.yml
index 3be3a983..eeaa4d0a 100644
--- a/.github/workflows/nix-flake.yml
+++ b/.github/workflows/nix-flake.yml
@@ -21,7 +21,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Install Nix
-        uses: DeterminateSystems/determinate-nix-action@v3.19.1
+        uses: DeterminateSystems/determinate-nix-action@v3.20.0
 
       - name: Check flake
         run: nix flake check --all-systems