diff --git a/libs/hbb_common/src/lib.rs b/libs/hbb_common/src/lib.rs
index 15ef310..f3ac940 100644
--- a/libs/hbb_common/src/lib.rs
+++ b/libs/hbb_common/src/lib.rs
@@ -218,7 +218,7 @@ pub fn gen_version() {
         }
     }
     // generate build date
-    let build_date = format!("{}", chrono::Local::now().format("%Y-%m-%d %H:%M"));
+    let build_date = "1970-01-01 00:00";
     file.write_all(
         format!("#[allow(dead_code)]\npub const BUILD_DATE: &str = \"{build_date}\";\n").as_bytes(),
     )