diff --git a/bin/check_invisible.sh b/bin/check_invisible.sh
index 22daa28..28e1d8c 100755
--- a/bin/check_invisible.sh
+++ b/bin/check_invisible.sh
@@ -2,7 +2,7 @@
 set -e -u
 # SPDX-License-Identifier: GPL-3.0-or-later
 # SPDX-FileCopyrightText: Bradley M. Bell <bradbell@seanet.com>
-# SPDX-FileContributor: 2020-22 Bradley M. Bell
+# SPDX-FileContributor: 2020-24 Bradley M. Bell
 # -----------------------------------------------------------------------------
 if [ "$0" != "bin/check_invisible.sh" ]
 then
@@ -19,13 +19,21 @@ else
    echo 'usage: bin/check_invisible [all]'
    exit 1
 fi
+#
+# sed_path
+if which gsed >& /dev/null
+then
+   sed_path=$(which gsed)
+else
+   sed_path=$(which sed)
+fi
 # ----------------------------------------------------------------------------
 # file_list
 if [ "$all" == 'true' ]
 then
    file_list=$(git ls-files)
 else
-   file_list=$(git status --porcelain | sed -e 's|^...||')
+   file_list=$(git status --porcelain | $sed_path -e 's|^...||')
 fi
 #
 # sed.$$
@@ -41,7 +49,7 @@ for file in $file_list
 do
    if [ -f "$file" ]
    then
-      sed -f sed.$$ $file > copy.$$
+      $sed_path -f sed.$$ $file > copy.$$
       if ! diff $file copy.$$ > diff.$$
       then
          echo "original (<) invisible white space removed (>)"
diff --git a/pyproject.toml b/pyproject.toml
index c7aff7a..e006b3f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ build-backend = 'setuptools.build_meta'
 # -----------------------------------------------------------------------------
 [project]
 name              = 'xrst'
-version           = '2024.6.25'
+version           = '2024.7.13'
 description       = 'Extract RST files from source code and run Sphinx'
 readme            = 'readme.md'
 requires-python   = '>=3.0'
diff --git a/setup.py b/setup.py
index 4ad9340..e032af1 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 
 setup(
    name             = 'xrst',
-   version          = '2024.6.25',
+   version          = '2024.7.13',
    description      = 'Extract RST files from source code and run Sphinx',
    license          = 'GPL-3.0-or-later',
    keywords         = 'sphinx rst documentation source',
diff --git a/test_rst/check_input_files.rst b/test_rst/check_input_files.rst
index d9ad29f..56530b2 100644
--- a/test_rst/check_input_files.rst
+++ b/test_rst/check_input_files.rst
@@ -25,7 +25,7 @@ Prototype
 *********
 
 .. literalinclude:: ../../xrst/check_input_files.py
-   :lines: 63-77,187-192
+   :lines: 62-76,186-191
    :language: py
 
 .. index:: config_file
diff --git a/test_rst/get_conf_dict.rst b/test_rst/get_conf_dict.rst
index 44d759b..8600fff 100644
--- a/test_rst/get_conf_dict.rst
+++ b/test_rst/get_conf_dict.rst
@@ -28,7 +28,7 @@ Prototype
 *********
 
 .. literalinclude:: ../../xrst/get_conf_dict.py
-   :lines: 507-509,700-702
+   :lines: 504-506,697-699
    :language: py
 
 .. index:: config_file
diff --git a/xrst/check_input_files.py b/xrst/check_input_files.py
index 8ae3043..c671e03 100644
--- a/xrst/check_input_files.py
+++ b/xrst/check_input_files.py
@@ -9,7 +9,6 @@
 # {xrst_begin check_input_files dev}
 # {xrst_spell
 #     conf
-#     config
 # }
 # {xrst_comment_ch #}
 #
diff --git a/xrst/get_conf_dict.py b/xrst/get_conf_dict.py
index 3a1d29d..6cf26c4 100644
--- a/xrst/get_conf_dict.py
+++ b/xrst/get_conf_dict.py
@@ -472,9 +472,6 @@ def iterable2string(iterable) :
    return string
 #
 # {xrst_begin get_conf_dict dev}
-# {xrst_spell
-#     config
-# }
 # {xrst_comment_ch #}
 #
 # Get Configuration Dictionary
diff --git a/xrst/run_xrst.py b/xrst/run_xrst.py
index f139792..63596e8 100644
--- a/xrst/run_xrst.py
+++ b/xrst/run_xrst.py
@@ -608,7 +608,7 @@ def fix_latex(latex_dir, project_name) :
 import xrst
 #
 # version
-version = '2024.6.25'
+version = '2024.7.13'
 #
 def run_xrst() :
    #