diff --git a/main.tf b/main.tf
index 3b57e1f..f5e3b83 100644
--- a/main.tf
+++ b/main.tf
@@ -30,7 +30,6 @@ resource "helm_release" "this" {
   dependency_update          = lookup(var.app, "dependency_update", false)
   replace                    = lookup(var.app, "replace", false)
   timeout                    = lookup(var.app, "timeout", 300)
-  upgrade_install            = lookup(var.app, "upgrade_install", false)
   values                     = var.values
 
   set = [for item in coalesce(var.set, []): { "name": item.name, "value": item.value}]