diff --git a/pyproject.toml b/pyproject.toml
index 67a71d4..bbb7c83 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ pytest = { version = "^8.0.0", optional = true }
 pytest-asyncio = { version = "^0.23.5", optional = true }
 pytest-mock = { version = "^3.10.0", optional = true }
 toml = { version = "^0.10.2", optional = true }
-sphinx = { version = "^7.0.0", optional = true }
+sphinx = { version = "^8.0.0", optional = true }
 furo = { version = "^2024.0.0", optional = true }
 types-toml = { version = "^0.10.8.1", optional = true }
 pyjwt = "^2.6.0"
@@ -56,7 +56,7 @@ pytest-mock = "^3.10.0"
 mypy = "^1.0"
 toml = "^0.10.2"
 types-toml = "^0.10.8.1"
-sphinx = "^7.0.0"
+sphinx = "^8.0.0"
 furo = "^2024.0.0"
 pytest-cov = "^5.0.0"
 black = { version = "^24.0.0", allow-prereleases = true }