diff --git a/pubsublite/spark-connector/requirements.txt b/pubsublite/spark-connector/requirements.txt
index 64800aab816..e0e772a2606 100644
--- a/pubsublite/spark-connector/requirements.txt
+++ b/pubsublite/spark-connector/requirements.txt
@@ -1 +1 @@
-pyspark[sql]==3.5.5
\ No newline at end of file
+pyspark[sql]==4.0.0
\ No newline at end of file