diff --git a/libs/langchain-mongodb/pyproject.toml b/libs/langchain-mongodb/pyproject.toml
index 07ac4982..65224637 100644
--- a/libs/langchain-mongodb/pyproject.toml
+++ b/libs/langchain-mongodb/pyproject.toml
@@ -21,7 +21,7 @@ dependencies = [
 [dependency-groups]
 dev = [
     "freezegun>=1.2.2",
-    "langchain>=0.3.14,<1.0",
+    "langchain>=0.3.14,<2.0",
     "langchain-core>=0.3.29,<1.0",
     "langchain-text-splitters>=0.3.5,<1.0",
     "pytest-mock>=3.10.0",