diff --git a/npc/flake.nix b/npc/flake.nix
index 32aa36a..e62173c 100644
--- a/npc/flake.nix
+++ b/npc/flake.nix
@@ -19,6 +19,7 @@
           packages = [
             clang-tools
             rnix-lsp
+            coursier
 
             gdb
             jre