diff --git a/pkgs/development/python-modules/h5py/default.nix b/pkgs/development/python-modules/h5py/default.nix
index 9e5921bb412d..dfa4288e54fc 100644
--- a/pkgs/development/python-modules/h5py/default.nix
+++ b/pkgs/development/python-modules/h5py/default.nix
@@ -8,13 +8,13 @@ let
   mpi = hdf5.mpi;
   mpiSupport = hdf5.mpiSupport;
 in buildPythonPackage rec {
-  version = "3.2.1";
+  version = "3.4.0";
   pname = "h5py";
   disabled = isPy27;
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-iUdL6RG/zbNMvw2YuOxItXjCeon9sa5O51E/HvjZJJ4=";
+    sha256 = "ee1c683d91ab010d5e85cb61e8f9e7ee0d8eab545bf3dd50a9618f1d0e8f615e";
   };
 
   # avoid strict pinning of numpy