diff --git a/pyproject.toml b/pyproject.toml
index de2bbf5..c5400a4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,10 +46,10 @@ classifiers = [
 dependencies = [
     "click>=8.3.3",
     "langchain>=0.3.0,<0.4.0",
-    "langchain-openai>=0.2.0,<0.3.0",
-    "langchain-anthropic>=0.2.0,<0.3.0",
+    "langchain-openai>=0.2.0,<0.4.0",
+    "langchain-anthropic>=0.2.0,<0.4.0",
     "langchain-core>=0.3.0,<0.4.0",
-    "langchain-community>=0.3.0,<0.4.0",
+    "langchain-community>=0.3.0,<0.5.0",
     "pydantic>=2.13.4,<3.0.0",
     "tiktoken>=0.7.0",
 ]