diff --git a/pyproject.toml b/pyproject.toml
index 35ee43e..ec3fe06 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,5 +6,5 @@ readme = "README.md"
 requires-python = ">=3.12"
 dependencies = [
     "jupyter>=1.1.1",
-    "pyspark>=3.5.0,<4.0.0",
+    "pyspark>=3.5.0,<5.0.0",
 ]