diff --git a/manifest.toml b/manifest.toml
index c9f7440..e3c09ce 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -45,6 +45,7 @@ ram.runtime = "50M"
         url = "https://github.com/audreyt/ethercalc/archive/b196277081d677be991d104e454a52d242ef0189.tar.gz"
         sha256 = "eaf1b7def67ebf1160d93e403a3930381e99a60f4768809bab653d1c9af26936"
         autoupdate.strategy = "latest_github_commit"
+        autoupdate.force_version = "%Y%m%d"
 
     [resources.ports]