diff --git a/pubsub-open-telemetry/.bazelversion b/pubsub-open-telemetry/.bazelversion
index 815da58b..f7ee0669 100644
--- a/pubsub-open-telemetry/.bazelversion
+++ b/pubsub-open-telemetry/.bazelversion
@@ -1 +1 @@
-7.4.1
+9.0.0
diff --git a/setup/.bazelversion b/setup/.bazelversion
index 815da58b..f7ee0669 100644
--- a/setup/.bazelversion
+++ b/setup/.bazelversion
@@ -1 +1 @@
-7.4.1
+9.0.0