diff --git a/README.rst b/README.rst
index ca9a567d..e69ba3dd 100644
--- a/README.rst
+++ b/README.rst
@@ -24,26 +24,7 @@ used to solve (medical) image registration problems. The modular design of
 elastix allows the user to quickly configure, test, and compare different
 registration methods for a specific application.
 
-Installation
-------------
-
-Install cross-platform binary Python packages with::
-
-  pip install itk-elastix
-
-Usage
------
-
-To register two images, traditionally called the fixed image and the moving
-image::
-
-  import itk
-
-  fixed_image = itk.imread('path/to/fixed_image.mha')
-  moving_image = itk.imread('path/to/moving_image.mha')
-
-  registered_image = itk.elastix_registration_method(fixed_image, moving_image)
-
+.. note:: This package is a work in progress.
 
 Acknowledgements
 ----------------
diff --git a/include/itkElastixRegistrationMethod.hxx b/include/itkElastixRegistrationMethod.hxx
index 4a1f7f32..17eff930 100644
--- a/include/itkElastixRegistrationMethod.hxx
+++ b/include/itkElastixRegistrationMethod.hxx
@@ -48,11 +48,8 @@ ElastixRegistrationMethod< TFixedImage, TMovingImage >
   this->SetPrimaryInputName( "FixedImage" );
   this->SetPrimaryOutputName( "ResultImage" );
 
-  this->AddRequiredInputName( "FixedImage", 0 );
   this->AddRequiredInputName( "MovingImage", 1 );
   this->AddRequiredInputName( "ParameterObject", 2 );
-  this->SetNumberOfRequiredInputs( 3 );
-
 
   this->m_InitialTransformParameterFileName = "";
   this->m_FixedPointSetFileName             = "";
diff --git a/setup.py b/setup.py
index d82f5e25..4651f0f4 100644
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@
 
 setup(
     name='itk-elastix',
-    version='0.1.0',
+    version='0.2.0',
     author='Insight Software Consortium',
     author_email='itk+community@discourse.itk.org',
     packages=['itk'],
@@ -44,6 +44,6 @@
     keywords='ITK InsightToolkit',
     url=r'https://itk.org/',
     install_requires=[
-        r'itk>=5.0.0.post1'
+        r'itk>=5.1b01'
     ]
     )
diff --git a/test/azure-pipelines.yml b/test/azure-pipelines.yml
index 07de04c3..35783768 100644
--- a/test/azure-pipelines.yml
+++ b/test/azure-pipelines.yml
@@ -1,6 +1,6 @@
 variables:
-  ITKGitTag: v5.0.1
-  ITKPythonGitTag: v5.0.1
+  ITKGitTag: v5.1b01
+  ITKPythonGitTag: v5.1b01
   CMakeBuildType: Release
 
 trigger: