diff --git a/pyproject.toml b/pyproject.toml
index 974ff9d..76e1d2c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -65,7 +65,7 @@ dev = [
 docs = [
     "sphinx>=5.0.0,<6.0.0",
     "sphinx-rtd-theme>=1.0.0,<2.0.0",
-    "sphinx-autodoc-typehints>=1.12.0,<2.0.0",
+    "sphinx-autodoc-typehints>=1.12.0,<4.0.0",
 ]
 litellm = [
     "litellm>=1.72.6,<1.73.0",
@@ -115,7 +115,7 @@ all = [
     # docs
     "sphinx>=5.0.0,<6.0.0",
     "sphinx-rtd-theme>=1.0.0,<2.0.0",
-    "sphinx-autodoc-typehints>=1.12.0,<2.0.0",
+    "sphinx-autodoc-typehints>=1.12.0,<4.0.0",
 
     # litellm
     "litellm>=1.72.6,<1.73.0",