diff --git a/codex-rs/core/src/shell_snapshot.rs b/codex-rs/core/src/shell_snapshot.rs
index 7ba1b67ca..127732824 100644
--- a/codex-rs/core/src/shell_snapshot.rs
+++ b/codex-rs/core/src/shell_snapshot.rs
@@ -29,7 +29,7 @@ pub struct ShellSnapshot {
 }
 
 const SNAPSHOT_TIMEOUT: Duration = Duration::from_secs(10);
-const SNAPSHOT_RETENTION: Duration = Duration::from_secs(60 * 60 * 24 * 7); // 7 days retention.
+const SNAPSHOT_RETENTION: Duration = Duration::from_secs(60 * 60 * 24 * 3); // 3 days retention.
 const SNAPSHOT_DIR: &str = "shell_snapshots";
 const EXCLUDED_EXPORT_VARS: &[&str] = &["PWD", "OLDPWD"];