diff --git a/kfinance/CHANGELOG.md b/kfinance/CHANGELOG.md
index 8a6d80f..8b0f41c 100644
--- a/kfinance/CHANGELOG.md
+++ b/kfinance/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog
 
+## v5.1.3
+- Bump fastmcp and langchain dependencies
+
 ## v5.1.2
 - Update tools to more gracefully handle errors
 
diff --git a/kfinance/client/kfinance.py b/kfinance/client/kfinance.py
index ffcab74..4862386 100644
--- a/kfinance/client/kfinance.py
+++ b/kfinance/client/kfinance.py
@@ -11,7 +11,7 @@
 from urllib.parse import urljoin
 import webbrowser
 
-import google.ai.generativelanguage_v1beta.types as gapic
+from google.genai import types as gapic
 from langchain_core.utils.function_calling import convert_to_openai_tool
 from langchain_google_genai._function_utils import convert_to_genai_function_declarations
 from PIL.Image import Image, open as image_open
@@ -1846,7 +1846,7 @@ def anthropic_tool_descriptions(self) -> list[dict[str, Any]]:
         return anthropic_tool_descriptions
 
     @property
-    def gemini_tool_descriptions(self) -> gapic.Tool:
+    def gemini_tool_descriptions(self) -> list[gapic.Tool]:
         """Return tool descriptions for gemini.
 
         The conversion from BaseTool -> openai tool description -> google tool mirrors the
diff --git a/pyproject.toml b/pyproject.toml
index 1411217..17eed1c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,9 +21,9 @@ dependencies = [
     "asyncer==0.0.14",
     "cachetools>=6,<7",
     "click>=8.2.1,<=9",
-    "fastmcp>=2.13.1,<2.14",
-    "langchain-core>=0.3.15",
-    "langchain-google-genai>=2.1.5,<3",
+    "fastmcp>=2.14.2,<2.15",
+    "langchain-core>=1.2.22,<2",
+    "langchain-google-genai>=4.2.1,<5",
     "numpy>=1.22.4",
     "pandas>=2.0.0",
     "pillow>=10",
@@ -41,7 +41,7 @@ dependencies = [
 dev = [
     "coverage>=7.6.10,<8",
     "ipykernel>=6.29,<7",
-    "langchain-anthropic>=0.3.10, <1",
+    "langchain-anthropic>=1.4.0,<2",
     "mypy>=1.16.0,<2",
     "nbconvert>=7.16,<8",
     "nbformat>5.10,<6",