diff --git a/pyproject.toml b/pyproject.toml
index 13ab54ae0..7c1ef1b37 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "instructor"
-version = "1.6.3"
+version = "1.6.4"
 description = "structured outputs for llm"
 authors = ["Jason Liu <jason@jxnl.co>"]
 license = "MIT"