diff --git a/libs/core/pyproject.toml b/libs/core/pyproject.toml
index 4f0c12661e8..2ea20a93499 100644
--- a/libs/core/pyproject.toml
+++ b/libs/core/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "langchain-core"
-version = "0.2.38"
+version = "0.3.0.dev1"
 description = "Building applications with LLMs through composability"
 authors = []
 license = "MIT"
@@ -30,13 +30,7 @@ jsonpatch = "^1.33"
 PyYAML = ">=5.3"
 packaging = ">=23.2,<25"
 typing-extensions = ">=4.7"
-[[tool.poetry.dependencies.pydantic]]
-version = ">=1,<3"
-python = "<3.12.4"
-
-[[tool.poetry.dependencies.pydantic]]
-version = "^2.7.4"
-python = ">=3.12.4"
+pydantic = ">=2,<3"
 
 [tool.poetry.extras]