diff --git a/tools/state.json b/tools/state.json
index ccec4ae..09af2d9 100644
--- a/tools/state.json
+++ b/tools/state.json
@@ -1,5 +1,5 @@
 {
   "nix_installer_action_revision": "4a754ab0c192f4d12cf88b5954b9dd13fd2d612e",
-  "determinate_nix_tag": "v3.19.1",
+  "determinate_nix_tag": "v3.20.0",
   "checkout_action_tag": "v6.0.2"
 }