diff --git a/documentation/ref-manual/system-requirements.rst b/documentation/ref-manual/system-requirements.rst
index c5fe4da036..391ba95c42 100644
--- a/documentation/ref-manual/system-requirements.rst
+++ b/documentation/ref-manual/system-requirements.rst
@@ -172,8 +172,8 @@ with a supported Ubuntu or Debian Linux distribution::
 
 Here are the packages needed to build Project documentation manuals::
 
-   $ sudo apt install make python3-pip inkscape texlive-latex-extra
-   &PIP3_HOST_PACKAGES_DOC;
+   $ sudo apt install git make inkscape texlive-latex-extra
+   $ sudo apt install sphinx python3-saneyaml python3-sphinx-rtd-theme
 
    .. note::
 
@@ -191,7 +191,7 @@ with a supported Fedora Linux distribution::
 
 Here are the packages needed to build Project documentation manuals::
 
-   $ sudo dnf install make python3-pip which inkscape texlive-fncychap
+   $ sudo dnf install git make python3-pip which inkscape texlive-fncychap
    &PIP3_HOST_PACKAGES_DOC;
 
 openSUSE Packages
@@ -204,7 +204,7 @@ with a supported openSUSE distribution::
 
 Here are the packages needed to build Project documentation manuals::
 
-   $ sudo zypper install make python3-pip which inkscape texlive-fncychap
+   $ sudo zypper install git make python3-pip which inkscape texlive-fncychap
    &PIP3_HOST_PACKAGES_DOC;
 
 
@@ -231,7 +231,7 @@ with a supported AlmaLinux distribution::
 
 Here are the packages needed to build Project documentation manuals::
 
-   $ sudo dnf install make python3-pip which inkscape texlive-fncychap
+   $ sudo dnf install git make python3-pip which inkscape texlive-fncychap
    &PIP3_HOST_PACKAGES_DOC;
 
 .. _system-requirements-buildtools: