diff --git a/docs/requirements.txt b/docs/requirements.txt
index 55db4bc54..02d602d24 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -17,7 +17,7 @@ sphinxjp.themes.basicstrap
 sphinx>=2.0
 sphinx-gallery>0.6.2
 pillow>=7.1.2
-breathe==4.34.0
+breathe==4.35.0
 sphinx_copybutton>=0.3.0
 sphinx_tabs>3.0
 recommonmark
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 77688da8d..f663903ba 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -28,7 +28,7 @@ sphinxjp.themes.basicstrap
 sphinx>=2.0
 sphinx-gallery>=0.10
 pillow>=7.1.2
-breathe==4.34.0
+breathe==4.35.0
 sphinx_copybutton>=0.3.0
 sphinx-tabs>=1.1.13
 recommonmark