diff --git a/pyproject.toml b/pyproject.toml
index 03ba81b4..d40e6bce 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -84,7 +84,7 @@ dev = [
     "typogrify>=2.0.7",
     "sphinx>=7.1.2",
     "sphinxext-opengraph>=0.9.0",
-    "furo>=2023.9.10",
+    "furo==2023.9.10",
     "livereload>=2.6.3",
     "psutil>=5.9.6",
     "pygments>=2.16.1",
diff --git a/requirements/docs.pip b/requirements/docs.pip
index 961a6473..7b0f37cc 100644
--- a/requirements/docs.pip
+++ b/requirements/docs.pip
@@ -1,5 +1,5 @@
-sphinx<6.0
+sphinx
 sphinxext-opengraph
-furo
+furo==2023.9.10
 livereload
 tomli;python_version<"3.11"