diff --git a/pyproject.toml b/pyproject.toml
index 6f23666c..cdc47a2c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,6 +26,7 @@ dependencies = [
     "jsonlines",
     "pydantic-cli",
     "hf_transfer",
+    "antlr4-python3-runtime==4.9.3",
 ]
 
 [project.scripts]