diff --git a/vtk.spec b/vtk.spec
index cb6ce1b..dc3c7e1 100644
--- a/vtk.spec
+++ b/vtk.spec
@@ -23,7 +23,7 @@
 %define shlib        %{vtklib}
 
 Name:           vtk
-Version:        8.1.2
+Version:        8.1.1
 Release:        0
 %define series  8.1
 # This is a variant BSD license, a cross between BSD and ZLIB.
@@ -81,7 +81,6 @@ BuildRequires:  netcdf-devel
 BuildRequires:  openmpi-devel
 BuildRequires:  python3-devel
 BuildRequires:  python3-mpi4py-devel
-BuildRequires:  python3-numpy-devel
 BuildRequires:  python3-qt5-devel
 BuildRequires:  tcl-devel
 BuildRequires:  tk-devel
@@ -107,7 +106,7 @@ rendering and visualization. VTK includes many advanced algorithms
 rendering techniques (e.g. hardware-accelerated volume rendering, LOD
 control).
 
-%package     -n %{shlib}
+%package -n %{shlib}
 Summary:        The Visualization Toolkit - A high level 3D visualization library
 Group:          System/Libraries
 Conflicts:      %{vtkcompatlib}
@@ -118,7 +117,7 @@ rendering and visualization.
 
 This package provides the shared libraries for VTK.
 
-%package        devel
+%package devel
 Summary:        VTK header files for building C++ code
 # not strictly necessary, but required by VTKs cmake files
 Group:          Development/Libraries/C and C++
@@ -146,43 +145,40 @@ Requires:       netcdf-devel
 Requires:       openmpi-devel
 Conflicts:      vtk-compat_gl-devel
 
-%description    devel
+%description devel
 VTK is a software system for image processing, 3D graphics, volume
 rendering and visualization.
 
 This provides the VTK header files required to compile C++ programs that
 use VTK to do 3D visualisation.
 
-%package        devel-doc
+%package devel-doc
 Summary:        VTK API documentation
 Group:          Documentation/HTML
 
-%description    devel-doc
+%description devel-doc
 VTK is a software system for image processing, 3D graphics, volume
 rendering and visualization.
 
 This provides the VTK API documentation useful for developing programs that
 use VTK to do 3D visualisation.
 
-%package        java
+%package java
 Summary:        Java bindings for VTK
 Group:          Development/Libraries/Java
 Requires:       %{shlib} = %{version}
 Conflicts:      vtk-compat_gl-java
 
-%description    java
+%description java
 VTK is a software system for image processing, 3D graphics, volume
 rendering and visualization.
 
 This package provides java bindings for VTK.
 
-%package     -n python3-%{name}
+%package -n python3-%{name}
 Summary:        Python bindings for VTK
 Group:          Development/Languages/Python
 Requires:       %{shlib} = %{version}
-Requires:       python3-mpi4py
-Requires:       python3-numpy
-Requires:       python3-qt5
 Conflicts:      python3-vtk-compat_gl
 
 %description -n python3-%{name}
@@ -191,7 +187,7 @@ rendering and visualization.
 
 This package provides python bindings for VTK.
 
-%package        qt
+%package qt
 Summary:        Qt Designer plugin for QVTKWidget
 Group:          Development/Libraries/C and C++
 Requires:       %{shlib} = %{version}
@@ -203,40 +199,40 @@ rendering and visualization.
 
 This package provides a Qt Designer plugin for the QVTKWidget.
 
-%package        tcl
+%package tcl
 Summary:        Tcl bindings for VTK
 Group:          Development/Languages/Tcl
 Requires:       %{shlib} = %{version}
 Conflicts:      vtk-compat_gl-tcl
 
-%description    tcl
+%description tcl
 VTK is a software system for image processing, 3D graphics, volume
 rendering and visualization.
 
 This package provides tcl bindings for VTK.
 
-%package        examples
+%package examples
 Summary:        Examples for VTK
 Group:          Productivity/Scientific/Other
 Requires:       %{shlib} = %{version}
 Recommends:     %{name}data = %{version}
 Conflicts:      vtk-compat_gl-examples
 
-%description    examples
+%description examples
 VTK is a software system for image processing, 3D graphics, volume
 rendering and visualization.
 
 This package contains many examples showing how to use VTK. Examples
 are available in the C++, Tcl, Python and Java programming languages.
 
-%package        testing
+%package testing
 Summary:        Testing programs for VTK
 Group:          Productivity/Scientific/Other
 Requires:       %{name}data = %{version}
 Requires:       %{shlib} = %{version}
 Conflicts:      vtk-compat_gl-testing
 
-%description    testing
+%description testing
 VTK is a software system for image processing, 3D graphics, volume
 rendering and visualization.
 
@@ -370,10 +366,6 @@ chrpath -d %{buildroot}%{_bindir}/*
 
 %fdupes -s %{buildroot}
 
-%check
-export PYTHONPATH=%{buildroot}%{python3_sitearch}
-python3 -c "import python3"
-
 %post   -n %{shlib} -p /sbin/ldconfig
 %postun -n %{shlib} -p /sbin/ldconfig