diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 4d5b630..5d4c2a8 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -24,7 +24,7 @@ jobs:
     - uses: actions/checkout@v4
 
     - name: install nix
-      uses: DeterminateSystems/determinate-nix-action
+      uses: DeterminateSystems/determinate-nix-action@v3.5.2
       with:
         extra-conf: "lazy-trees = true"