diff --git a/pyproject.toml b/pyproject.toml
index d62c3195d1..6cd0478be2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -59,7 +59,7 @@ code-generation = ["dataclasses_json", "jinja2"]
 
 doc = [
     "sphinx",
-    "breathe",
+    "breathe<5",
     "myst_nb",
     "sphinx_rtd_theme",
     "readthedocs-sphinx-search",
diff --git a/uv.lock b/uv.lock
index 4ad84c402b..69af8ded54 100644
--- a/uv.lock
+++ b/uv.lock
@@ -146,14 +146,14 @@ wheels = [
 
 [[package]]
 name = "breathe"
-version = "5.0.0"
+version = "4.36.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "sphinx" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/40/1b/4d9c360eef294ebefa1a601c79e4247e8f93781e9e0019434ef5722c7e4f/breathe-5.0.0.tar.gz", hash = "sha256:9e5c4b2538a3eef9fbcfe9dd966f8f3171d4fd6cbe4976d84578d05f48e09fc3", size = 200601, upload-time = "2026-09-21T18:50:12.89Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/01/56/99bf7d0799d95ad485d95596dc01c2a5b3dda58ebf50a94f6f73b33bacdf/breathe-4.36.0.tar.gz", hash = "sha256:14860b73118ac140b7a3f55446890c777d1b67149cb024279fe3710dad7f535c", size = 154842, upload-time = "2025-02-22T18:36:03.36Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/19/bd/5ea942775ba2e3ab47437f75f7953cdc6f55026c4c2941d523cc490f4272/breathe-5.0.0-py3-none-any.whl", hash = "sha256:b6b8d617f8c481c62971afdf8f01af0c865acd29058235dd6e9d241ed2a2f6ae", size = 100621, upload-time = "2026-09-21T18:50:11.088Z" },
+    { url = "https://files.pythonhosted.org/packages/2c/bc/d67ef1e11ed6e6343c135bf605aa9d5734ff0cc77eb42a2a41f182abc9d9/breathe-4.36.0-py3-none-any.whl", hash = "sha256:af85436f1f09e842bd1fd95617281211c635f8768d245ff830c59b979888d1d5", size = 97231, upload-time = "2025-02-22T18:36:01.087Z" },
 ]
 
 [[package]]
@@ -1668,7 +1668,7 @@ dev = [
     { name = "ruff" },
 ]
 doc = [
-    { name = "breathe" },
+    { name = "breathe", specifier = "<5" },
     { name = "gitpython" },
     { name = "myst-nb" },
     { name = "numpydoc" },