diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 52b1b877..1878ee70 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
 
       # --- Install Nix via Determinate Systems ---
       - name: Set up Determinate Nix
-        uses: DeterminateSystems/determinate-nix-action@1361e7900eb437fb341f0f226e8fbd9a0d8284fa # v3
+        uses: DeterminateSystems/determinate-nix-action@f4c468f2287f0f14a113841b41f2dc8957119519 # v3
 
       - name: Use Determinate Cache
         uses: DeterminateSystems/magic-nix-cache-action@565684385bcd71bad329742eefe8d12f2e765b39 # v13