diff --git a/.bazelversion b/.bazelversion
deleted file mode 100644
index 8a30e8f9..00000000
--- a/.bazelversion
+++ /dev/null
@@ -1 +0,0 @@
-5.4.0
diff --git a/proto/.bazelversion b/proto/.bazelversion
new file mode 100644
index 00000000..19b860c1
--- /dev/null
+++ b/proto/.bazelversion
@@ -0,0 +1 @@
+6.4.0