diff --git a/iotdb-core/ainode/pyproject.toml b/iotdb-core/ainode/pyproject.toml
index 6a29dbbdb628..d92a466daf73 100644
--- a/iotdb-core/ainode/pyproject.toml
+++ b/iotdb-core/ainode/pyproject.toml
@@ -111,7 +111,7 @@ hf_xet = ">=1.1.9"
 
 # ---- Tooling ----
 pyinstaller = "6.16.0"
-black = "25.1.0"
+black = ">=26.3.1"
 isort = "6.0.1"
 setuptools = ">=75.3.0"
 joblib = ">=1.4.2"