diff --git a/shell.nix b/shell.nix
index 80ddc98..621e568 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1,4 +1,5 @@
 { pkgs ? import ./nix {} }:
 pkgs.npmlock2nix.shell {
   src = ./.;
+  nodejs = pkgs.nodejs-12_x;
 }