diff --git a/nix/core.nix b/nix/core.nix
index cfcd11f..728e6fd 100644
--- a/nix/core.nix
+++ b/nix/core.nix
@@ -38,6 +38,7 @@
     tree
     bottom
     nmap
+    grpcurl
 
     # Refactoring
     ast-grep
@@ -92,7 +93,6 @@
     # Terraform
     tenv
     tflint
-    terragrunt
 
     # Kubernetes
     kubernetes-helm