diff --git a/Cargo.toml b/Cargo.toml
index 7ff92de..13ea44f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -104,6 +104,7 @@ modern-full = [
     "limits",
     "load_extension",
     "serde_json",
+    "serialize",
     "series",
     "time",
     "trace",