diff --git a/.envrc b/.envrc
index b84f4a3..6657cb1 100755
--- a/.envrc
+++ b/.envrc
@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
+if ! has nix_direnv_version || ! nix_direnv_version 2.2.0; then
+    source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/2.2.0/direnvrc" "sha256-5EwyKnkJNQeXrRkYbwwRBcXbibosCJqyIUuz9Xq+LRc="
+fi
 # Environment variables for the project. See https://direnv.net/
 if nix flake metadata &>/dev/null; then
   use flake