diff --git a/pyproject.toml b/pyproject.toml
index c4db72d..6252a4d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,7 +49,7 @@ orchestrator_multimno = "multimno.orchestrator_multimno:main"
 # Optional dependencies
 [project.optional-dependencies]
 spark = [
-    "pyspark==3.5.1",
+    "pyspark==3.5.2",
     "grpcio>=1.48,<1.57",
     "grpcio-status>=1.48,<1.57",
     "googleapis-common-protos==1.56.4",