diff --git a/pyproject.toml b/pyproject.toml
index 4b91b329..5a43f021 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,6 @@ dependencies = [
     "fastapi>=0.121.3",
     "fastmcp>=2.14.1",
     "httpx>=0.28.1",
-    "litellm>=1.80.0",
     "loguru>=0.7.3",
     "mcp>=1.25.0",
     "numpy>=2.2.6",
@@ -80,6 +79,10 @@ full = [
     "reme_ai[dev,ray,light]",
 ]
 
+litellm = [
+    "litellm==1.80.0",
+]
+
 light = [
     "agentscope==1.0.17",
 ]
diff --git a/reme/__init__.py b/reme/__init__.py
index adb4cbe4..28d87f9e 100644
--- a/reme/__init__.py
+++ b/reme/__init__.py
@@ -6,7 +6,7 @@ from . import extension
 from . import memory
 from .reme import ReMe
 
-__version__ = "0.3.1.2"
+__version__ = "0.3.1.3"
 
 __all__ = [
     "config",