diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index adf5e8f7..02a4e268 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.5.0
+    rev: v4.6.0
     hooks:
       - id: trailing-whitespace
         args: ['--markdown-linebreak-ext=md']
@@ -11,7 +11,7 @@ repos:
       - id: detect-aws-credentials
         args: ['--allow-missing-credentials']
   - repo: https://github.com/antonbabenko/pre-commit-terraform
-    rev: v1.88.2
+    rev: v1.89.1
     hooks:
       - id: terraform_fmt
       - id: terraform_docs
diff --git a/main.tf b/main.tf
index 6b77554f..28f28bd3 100644
--- a/main.tf
+++ b/main.tf
@@ -2989,7 +2989,7 @@ resource "aws_iam_role_policy_attachment" "karpenter" {
 }
 
 resource "aws_iam_role_policy_attachment" "additional" {
-  for_each = { for k, v in try(var.karpenter_node.iam_role_additional_policies, {}) : k => v if local.create_karpenter_node_iam_role }
+  for_each = { for k, v in lookup(var.karpenter_node, "iam_role_additional_policies", {}) : k => v if local.create_karpenter_node_iam_role }
 
   policy_arn = each.value
   role       = aws_iam_role.karpenter[0].name