diff --git a/crates/brioche/src/utils.rs b/crates/brioche/src/utils.rs
index 0ceaeba..f6c5639 100644
--- a/crates/brioche/src/utils.rs
+++ b/crates/brioche/src/utils.rs
@@ -133,7 +133,9 @@ impl clap::builder::TypedValueParser for ProjectRefsParser {
         // First check if it's a local path, then a registry name
         let source = if project_part.is_empty() {
             ProjectSource::Local(PathBuf::from("."))
-        } else if project_part.starts_with("./")
+        } else if project_part == "."
+            || project_part == ".."
+            || project_part.starts_with("./")
             || project_part.starts_with("../")
             || project_part.starts_with('/')
         {