diff --git a/FreeCAD.spec b/FreeCAD.spec
index 7d53830..1a778e5 100644
--- a/FreeCAD.spec
+++ b/FreeCAD.spec
@@ -41,6 +41,8 @@ BuildRequires:  Coin-devel
 #BuildRequires:  SoQt-devel
 #BuildRequires:  libmed-devel # needed for FEM module, but requires older hdf5 lib
 # we use upstream OpenCASCADE instead of oce atm
+BuildRequires:  hdf5-1_8-devel
+BuildRequires:  hdf5-1_8-openmpi-devel
 BuildRequires:  occt-devel
 BuildRequires:  vtk-devel
 BuildRequires:  vtk-java