Fix protobuf in the WORKSPACE

Fixes https://buildkite.com/bazel/bazel-bazel/builds/4327#882adb9d-7a31-4df8-b94c-c11794ef4468

RELNOTES: None.
PiperOrigin-RevId: 211619161
diff --git a/WORKSPACE b/WORKSPACE
index 6348949..cf6dd6c 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -69,20 +69,20 @@
 
 new_local_repository(
     name = "com_google_protobuf",
-    build_file = "./third_party/protobuf/3.6.0/BUILD",
-    path = "./third_party/protobuf/3.6.0/",
+    build_file = "./third_party/protobuf/3.6.1/BUILD",
+    path = "./third_party/protobuf/3.6.1/",
 )
 
 new_local_repository(
     name = "com_google_protobuf_cc",
-    build_file = "./third_party/protobuf/3.6.0/BUILD",
-    path = "./third_party/protobuf/3.6.0/",
+    build_file = "./third_party/protobuf/3.6.1/BUILD",
+    path = "./third_party/protobuf/3.6.1/",
 )
 
 new_local_repository(
     name = "com_google_protobuf_java",
-    build_file = "./third_party/protobuf/3.6.0/com_google_protobuf_java.BUILD",
-    path = "./third_party/protobuf/3.6.0/",
+    build_file = "./third_party/protobuf/3.6.1/com_google_protobuf_java.BUILD",
+    path = "./third_party/protobuf/3.6.1/",
 )
 
 new_local_repository(