diff --git a/doc/_extensions/zephyr/doxyrunner.py b/doc/_extensions/zephyr/doxyrunner.py
index 8ab68cc7543..8bd10e63a97 100644
--- a/doc/_extensions/zephyr/doxyrunner.py
+++ b/doc/_extensions/zephyr/doxyrunner.py
@@ -9,7 +9,7 @@ Introduction
 ============
 
 This Sphinx plugin can be used to run Doxygen build as part of the Sphinx build
-process. It is meant to be used with other plugins such as ``docleaf`` in order
+process. It is meant to be used with other plugins such as ``breathe`` in order
 to improve the user experience. The principal features offered by this plugin
 are:
 
diff --git a/doc/_static/css/custom.css b/doc/_static/css/custom.css
index a357621205a..da9f379d41d 100644
--- a/doc/_static/css/custom.css
+++ b/doc/_static/css/custom.css
@@ -843,13 +843,13 @@ kbd, .kbd,
     background-color: var(--navbar-scrollbar-active-color);
 }
 
-/* Docleaf tweaks */
+/* Breathe tweaks */
 
 .rst-content .section > dl > dd {
     margin-left: 0;
 }
 
-.rst-content p.docleaf-sectiondef-title {
+.rst-content p.breathe-sectiondef-title {
     font-size: 115%;
     color: var(--link-color);
 }
diff --git a/doc/requirements.txt b/doc/requirements.txt
index 2bd19422dca..2d90048e16f 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,6 +1,6 @@
 # DOC: used to generate docs
 
-docleaf==0.8.1
+breathe>=4.34
 sphinx~=6.2
 sphinx_rtd_theme~=1.2
 sphinx-tabs