diff --git a/lambda.tf b/lambda.tf
index 3d0ce37..b7ffdf4 100644
--- a/lambda.tf
+++ b/lambda.tf
@@ -7,13 +7,13 @@ resource "aws_lambda_layer_version" "aws_wrangler" {
 
 resource "aws_lambda_function" "etl_post_processing" {
     function_name = "etl-post-processing-${var.account_number}-${var.student_initials}-${var.student_index_no}"
-    filename = "lambda_definition.1.zip"
+    filename = "lambda_definition.zip"
     handler = "lambda_definition.etl_function"
     runtime = "python3.8"
     role = var.lab_role_arn
     timeout = 300
     memory_size = 512
-    source_code_hash= filebase64sha256("lambda_definition.1.zip")
+    source_code_hash= filebase64sha256("lambda_definition.zip")
     layers = ["${aws_lambda_layer_version.aws_wrangler.arn}"]
 }