diff --git a/direnv-nix.rc b/direnv-nix.rc
new file mode 100644
index 0000000..74af449
--- /dev/null
+++ b/direnv-nix.rc
@@ -0,0 +1,3 @@
+if ! has nix_direnv_version || ! nix_direnv_version 3.0.6; then
+  source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/3.0.6/direnvrc" "sha256-RYcUJaRMf8oF5LznDrlCXbkOQrywm0HDv1VjYGaJGdM="
+fi