diff --git a/pyproject.toml b/pyproject.toml
index 6fa3d320..6b7bd6e7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,7 +38,7 @@ Changelog = "https://github.com/googleapis/langchain-google-cloud-sql-pg-python/
 
 [project.optional-dependencies]
 langgraph = [
-    "langgraph-checkpoint>=4.0.0, <4.1.0"
+    "langgraph-checkpoint>=4.0.0, <5.0.0"
 ]
 test = [
     "black[jupyter]==26.1.0",
@@ -48,7 +48,7 @@ test = [
     "pytest==8.4.2",
     "pytest-cov==7.0.0",
     "langchain-tests==1.1.2",
-    "langgraph==1.0.7"
+    "langgraph>=1.2.2"
 ]
 
 [build-system]