diff --git a/pyproject.toml b/pyproject.toml
index cadf85f..66f4cd4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,7 @@ classifiers = [
 ]
 requires-python = ">=3.10,<3.15"
 dependencies = [
-    "binaryornot",
+    "binaryornot==0.4.4",
     "chardet<5.0.0",
     "numpy",
     "pandas",