diff --git a/templates/poetry.nix b/templates/poetry.nix
index af84a269..47d1a599 100644
--- a/templates/poetry.nix
+++ b/templates/poetry.nix
@@ -1,4 +1,4 @@
-{ pkgs ? import <nixpkgs> {}, python ? pkgs.python39, ... }:
+{ pkgs ? import <nixpkgs> {}, python ? pkgs.python3, ... }:
 
 let
   python-packages = ps: with ps; [
@@ -14,13 +14,14 @@ pkgs.mkShell {
     git
     zlib
     libgccjit
+    glibc
+    glibc_multi
   ];
 
   shellHook = ''
-    export LD_LIBRARY_PATH="${pkgs.zlib}/lib:${pkgs.libgccjit}/lib"
-    poetry lock --check > /dev/null || poetry lock
+    export LD_LIBRARY_PATH="${pkgs.glibc}/lib:${pkgs.glibc_multi}/lib:${pkgs.zlib}/lib:${pkgs.libgccjit}/lib"
+    [ ! -f "pyproject.toml" ] && poetry init -n
     poetry env use "$(command -v ${python}/bin/python)"
-    [ ! -d "./.venv" ] && poetry install --sync
-    source .venv/bin/activate
+    [ -d "./.venv" ] && source .venv/bin/activate
   '';
 }