diff --git a/buildconfig/CMake/PyStoG.cmake b/buildconfig/CMake/PyStoG.cmake
index 03075e76622b..30de14e26a81 100644
--- a/buildconfig/CMake/PyStoG.cmake
+++ b/buildconfig/CMake/PyStoG.cmake
@@ -1,6 +1,6 @@
 include(ExternalProject)
 
-set(_PyStoG_VERSION 4ad6d316bb94221e52b9a57fccbb65f4959972d3)
+set(_PyStoG_VERSION f184ebf9a72aae48ae0d5267fd6ab2e7df0988f6) # v0.4.7
 set(_PyStoG_download_dir ${CMAKE_CURRENT_BINARY_DIR}/../PyStoG-download)
 set(_PyStoG_source_dir ${_PyStoG_download_dir}/src/PyStoG/pystog)
 set(_PyStoG_source_test_dir ${_PyStoG_download_dir}/src/PyStoG/tests)
@@ -57,9 +57,6 @@ foreach(_py_file ${_test_files_support})
   file(COPY ${_PyStoG_source_test_dir}/${_py_file} DESTINATION ${_PyStoG_test_dir})
 endforeach()
 
-# copy over the test data
-file(COPY ${_PyStoG_download_dir}/src/PyStoG/data/test_data DESTINATION ${_PyStoG_test_dir})
-
 # register the tests
 set(PYUNITTEST_PYTHONPATH_EXTRA ${_PyStoG_test_root_dir})
 pyunittest_add_test(${_PyStoG_test_dir} python.scripts.pystog ${_test_files})
diff --git a/docs/source/release/v6.12.0/Diffraction/Powder/New_features/38404.rst b/docs/source/release/v6.12.0/Diffraction/Powder/New_features/38404.rst
new file mode 100644
index 000000000000..497ac229c8fb
--- /dev/null
+++ b/docs/source/release/v6.12.0/Diffraction/Powder/New_features/38404.rst
@@ -0,0 +1 @@
+- Move `pystog <https://github.com/neutrons/pystog>`_ from v0.2.7 to v0.4.7