diff --git a/hive-c0re/src/meta.rs b/hive-c0re/src/meta.rs
index e434d24..023ded4 100644
--- a/hive-c0re/src/meta.rs
+++ b/hive-c0re/src/meta.rs
@@ -92,7 +92,7 @@ pub async fn sync_agents(
 pub async fn prepare_deploy(name: &str) -> Result<()> {
     let dir = meta_dir();
     let input = format!("agent-{name}");
-    nix(&dir, &["flake", "lock", "--update-input", &input]).await
+    nix(&dir, &["flake", "update", &input]).await
 }
 
 /// Phase 2-success. Commits the staged `flake.lock` change with a
@@ -127,7 +127,7 @@ pub async fn abort_deploy() -> Result<()> {
 pub async fn lock_update_for_rebuild(name: &str) -> Result<()> {
     let dir = meta_dir();
     let input = format!("agent-{name}");
-    nix(&dir, &["flake", "lock", "--update-input", &input]).await?;
+    nix(&dir, &["flake", "update", &input]).await?;
     if !git_is_clean(&dir).await? {
         git(&dir, &["add", "flake.lock"]).await?;
         git_commit(&dir, &format!("rebuild {name}: lock update")).await?;
@@ -141,7 +141,7 @@ pub async fn lock_update_for_rebuild(name: &str) -> Result<()> {
 #[allow(dead_code)]
 pub async fn lock_update_hyperhive() -> Result<()> {
     let dir = meta_dir();
-    nix(&dir, &["flake", "lock", "--update-input", "hyperhive"]).await?;
+    nix(&dir, &["flake", "update", "hyperhive"]).await?;
     if !git_is_clean(&dir).await? {
         git(&dir, &["add", "flake.lock"]).await?;
         git_commit(&dir, "bump hyperhive").await?;