diff --git a/pyproject.toml b/pyproject.toml
index 5c9390e2e..569834b10 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -37,7 +37,7 @@ dependencies = [
 
 [project.optional-dependencies]
 docs = [
-    "sphinx==6.1.3",
+    "sphinx==7.0.1",
     "sphinx_rtd_theme==1.2.1",
 ]
 test = [