diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 9a2d5784d0a..2ef2b6b5940 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -8226,7 +8226,7 @@ in
   mesos = callPackage ../applications/networking/cluster/mesos {
     sasl = cyrus_sasl;
     inherit (pythonPackages) python boto setuptools wrapPython;
-    pythonProtobuf = pythonPackages.protobuf;
+    pythonProtobuf = pythonPackages.protobuf.override { protobuf = protobuf3_6; };
     perf = linuxPackages.perf;
   };