diff --git a/task-sdk/pyproject.toml b/task-sdk/pyproject.toml
index 3a72c9315184e..5089ef2f5c9df 100644
--- a/task-sdk/pyproject.toml
+++ b/task-sdk/pyproject.toml
@@ -52,6 +52,7 @@ dependencies = [
     "apache-airflow-core<3.2.0,>=3.1.1",
     "asgiref>=2.3.0",
     "attrs>=24.2.0, !=25.2.0",
+    "babel>=2.17.0",
     "fsspec>=2023.10.0",
     "httpx>=0.27.0",
     "jinja2>=3.1.5",