diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3d4377d..fbb137a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -37,8 +37,9 @@ jobs:
         python3-numpy
         python3-pip
         python3-sphinx
-        python3-sphinx-rtd-theme &&
-        pip3 install myst-parser linkify-it-py 
+        python3-sphinx-rtd-theme 
+        python3-myst-parser &&
+        pip3 install linkify-it-py 
 
     - name: Install homebrew dependencies
       if: matrix.os == 'macos-14'
diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index 348a081..646dd6f 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -24,13 +24,13 @@ configure_file(${CMAKE_CURRENT_SOURCE_DIR}/conf.py.in ${CMAKE_CURRENT_BINARY_DIR
 # ---------------------------------
 find_package(Sphinx REQUIRED)
 
-MESSAGE(STATUS "SPHINX_EXECUTABLE = ${SPHINX_EXECUTABLE}")
+MESSAGE(STATUS "SPHINXBUILD_EXECUTABLE = ${SPHINXBUILD_EXECUTABLE}")
 
 # Sphinx has internal caching, always run it
 add_custom_target(${PROJECT_NAME}_docs_sphinx ALL)
 add_custom_command(
   TARGET ${PROJECT_NAME}_docs_sphinx
-  COMMAND PYTHONPATH=${PROJECT_BINARY_DIR}/python:${h5_BINARY_DIR}/python:$ENV{PYTHONPATH} ${SPHINX_EXECUTABLE} -c . -j8 -b html ${CMAKE_CURRENT_SOURCE_DIR} html
+  COMMAND PYTHONPATH=${PROJECT_BINARY_DIR}/python:${h5_BINARY_DIR}/python:$ENV{PYTHONPATH} ${SPHINXBUILD_EXECUTABLE} -c . -j8 -b html ${CMAKE_CURRENT_SOURCE_DIR} html
 )
 
 #option(Sphinx_Only "When building the documentation, skip the Python Modules and the generation of C++ Api and example outputs" OFF)
diff --git a/share/cmake/Modules/FindSphinx.cmake b/share/cmake/Modules/FindSphinx.cmake
new file mode 100644
index 0000000..6901b85
--- /dev/null
+++ b/share/cmake/Modules/FindSphinx.cmake
@@ -0,0 +1,37 @@
+#  Copyright Olivier Parcollet 2017.
+#  Distributed under the Boost Software License, Version 1.0.
+#      (See accompanying file LICENSE_1_0.txt or copy at
+#          http://www.boost.org/LICENSE_1_0.txt)
+
+# This module looks for sphinx documentation tool 
+# and define a function that prepares the Makefile for sphinx-build
+
+find_program(SPHINXBUILD_EXECUTABLE
+ NAMES sphinx-build 
+ PATHS /usr/bin /opt/local/bin /usr/local/bin #opt/sphinx-doc/bin
+ PATH_SUFFIXES  bin
+ )
+
+if (NOT SPHINXBUILD_EXECUTABLE)
+ message(FATAL_ERROR "I cannot find sphinx to build the triqs documentation")
+endif()
+
+execute_process(
+      COMMAND "${SPHINXBUILD_EXECUTABLE}" --version
+      OUTPUT_VARIABLE SPHINXBUILD_VERSION
+      ERROR_VARIABLE  SPHINXBUILD_VERSION
+    )
+if (SPHINXBUILD_VERSION MATCHES "[Ss]phinx.* ([0-9]+\\.[0-9]+(\\.|b)[0-9]+)")
+  set (SPHINXBUILD_VERSION "${CMAKE_MATCH_1}")
+endif()
+
+if (SPHINXBUILD_VERSION VERSION_EQUAL 1.6.3)
+ message(FATAL_ERROR "sphinx-build found at ${SPHINXBUILD_EXECUTABLE} but version 1.6.3 has a bug. Upgrade sphinx.")
+else()
+ message(STATUS "sphinx-build program found at ${SPHINXBUILD_EXECUTABLE} with version ${SPHINXBUILD_VERSION}")
+endif ()
+
+include(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(Sphinx DEFAULT_MSG SPHINXBUILD_EXECUTABLE)
+
+mark_as_advanced( SPHINXBUILD_EXECUTABLE )