diff --git a/.github/workflows/test-nix.yml b/.github/workflows/test-nix.yml
index caf7a49630f..60d5ea901f7 100644
--- a/.github/workflows/test-nix.yml
+++ b/.github/workflows/test-nix.yml
@@ -33,7 +33,7 @@ jobs:
           persist-credentials: false
 
       - name: Install nix
-        uses: DeterminateSystems/determinate-nix-action@1361e7900eb437fb341f0f226e8fbd9a0d8284fa # v3.17.2
+        uses: DeterminateSystems/determinate-nix-action@bafaa638b9d5ec0e7e3ac1a7fc80453ef1fd265f # v3.20.0
 
       - name: Setup cachix
         uses: cachix/cachix-action@1eb2ef646ac0255473d23a5907ad7b04ce94065c # v17