diff --git a/src/python/sys.rs b/src/python/sys.rs
index d6d86bf97f..f355b53875 100644
--- a/src/python/sys.rs
+++ b/src/python/sys.rs
@@ -194,6 +194,7 @@ pub static KNOWN_STANDARD_LIBRARY: Lazy<FxHashSet<&'static str>> = Lazy::new(||
         "tkinter",
         "token",
         "tokenize",
+        "tomllib",
         "trace",
         "traceback",
         "tracemalloc",