diff --git a/.envrc b/.envrc
index 956a218..9222bda 100644
--- a/.envrc
+++ b/.envrc
@@ -1,5 +1,5 @@
-if ! has nix_direnv_version || ! nix_direnv_version 2.2.1; then
-    source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/2.2.1/direnvrc" "sha256-zelF0vLbEl5uaqrfIzbgNzJWGmLzCmYAkInj/LNxvKs="
+if ! has nix_direnv_version || ! nix_direnv_version 2.4.0; then
+    source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/2.4.0/direnvrc" "sha256-XQzUAvL6pysIJnRJyR7uVpmUSZfc7LSgWQwq/4mBr1U="
 fi
 
 nix_direnv_watch_file ./flake/checks.nix
diff --git a/templates/c++-cmake/.envrc b/templates/c++-cmake/.envrc
index f347aa9..ccf325e 100644
--- a/templates/c++-cmake/.envrc
+++ b/templates/c++-cmake/.envrc
@@ -1,5 +1,5 @@
-if ! has nix_direnv_version || ! nix_direnv_version 2.2.1; then
-    source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/2.2.1/direnvrc" "sha256-zelF0vLbEl5uaqrfIzbgNzJWGmLzCmYAkInj/LNxvKs="
+if ! has nix_direnv_version || ! nix_direnv_version 2.4.0; then
+    source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/2.4.0/direnvrc" "sha256-XQzUAvL6pysIJnRJyR7uVpmUSZfc7LSgWQwq/4mBr1U="
 fi
 
 use flake
diff --git a/templates/c++-meson/.envrc b/templates/c++-meson/.envrc
index f347aa9..ccf325e 100644
--- a/templates/c++-meson/.envrc
+++ b/templates/c++-meson/.envrc
@@ -1,5 +1,5 @@
-if ! has nix_direnv_version || ! nix_direnv_version 2.2.1; then
-    source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/2.2.1/direnvrc" "sha256-zelF0vLbEl5uaqrfIzbgNzJWGmLzCmYAkInj/LNxvKs="
+if ! has nix_direnv_version || ! nix_direnv_version 2.4.0; then
+    source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/2.4.0/direnvrc" "sha256-XQzUAvL6pysIJnRJyR7uVpmUSZfc7LSgWQwq/4mBr1U="
 fi
 
 use flake