diff --git a/.bazelversion b/.bazelversion
index 91e4a9f2622..686330a9ff6 100644
--- a/.bazelversion
+++ b/.bazelversion
@@ -1 +1,3 @@
-6.3.2
+6.4.0
+# TODO(SERVER-86050): s390x and ppc64le are using custom built Bazel v6.4.0 binaries
+# Do not update this without updating the custom built binaries until Bazelisk is supported on s390x & ppc64le.