Index: cli/tools/upgrade.rs
--- cli/tools/upgrade.rs.orig
+++ cli/tools/upgrade.rs
@@ -268,6 +268,8 @@ pub async fn upgrade(
   flags: Flags,
   upgrade_flags: UpgradeFlags,
 ) -> Result<(), AnyError> {
+  #[cfg(target_os = "openbsd")]
+  bail!("Upgrades are not supported on OpenBSD.");
   let factory = CliFactory::from_flags(flags).await?;
   let client = factory.http_client();
   let current_exe_path = std::env::current_exe()?;