diff --git a/tools/ray_tpu/src/requirements-hp.txt b/tools/ray_tpu/src/requirements-hp.txt
index 0161e8f4..4d097db6 100644
--- a/tools/ray_tpu/src/requirements-hp.txt
+++ b/tools/ray_tpu/src/requirements-hp.txt
@@ -11,4 +11,4 @@ pandas
 ray[tune]
 tensorflow-cpu==2.9.3
 tensorflow-datasets==4.4.0
-protobuf==3.19.0
\ No newline at end of file
+protobuf==3.19.5
\ No newline at end of file