diff --git a/kinode/build.rs b/kinode/build.rs
index 0ea04a5b..6be8af9c 100644
--- a/kinode/build.rs
+++ b/kinode/build.rs
@@ -136,7 +136,8 @@ fn build_and_zip_package(
         let mut writer = Cursor::new(Vec::new());
         let options = FileOptions::default()
             .compression_method(zip::CompressionMethod::Deflated)
-            .unix_permissions(0o755);
+            .unix_permissions(0o755)
+            .last_modified_time(zip::DateTime::from_date_and_time(1980, 1, 1, 0, 0, 0).unwrap());
         {
             let mut zip = zip::ZipWriter::new(&mut writer);