diff --git a/Chapter12/poetry.lock b/Chapter12/poetry.lock
index 2485f78..9fb8957 100644
--- a/Chapter12/poetry.lock
+++ b/Chapter12/poetry.lock
@@ -1417,14 +1417,14 @@ xai = ["langchain-xai"]
 
 [[package]]
 name = "langchain-community"
-version = "0.3.26"
+version = "0.3.27"
 description = "Community contributed LangChain integrations."
 optional = false
 python-versions = ">=3.9"
 groups = ["main"]
 files = [
-    {file = "langchain_community-0.3.26-py3-none-any.whl", hash = "sha256:b25a553ee9d44a6c02092a440da6c561a9312c7013ffc25365ac3f8694edb53a"},
-    {file = "langchain_community-0.3.26.tar.gz", hash = "sha256:49f9d71dc20bc42ccecd6875d02fafef1be0e211a0b22cecbd678f5fd3719487"},
+    {file = "langchain_community-0.3.27-py3-none-any.whl", hash = "sha256:581f97b795f9633da738ea95da9cb78f8879b538090c9b7a68c0aed49c828f0d"},
+    {file = "langchain_community-0.3.27.tar.gz", hash = "sha256:e1037c3b9da0c6d10bf06e838b034eb741e016515c79ef8f3f16e53ead33d882"},
 ]
 
 [package.dependencies]
@@ -4274,4 +4274,4 @@ cffi = ["cffi (>=1.11)"]
 [metadata]
 lock-version = "2.1"
 python-versions = "~3.10"
-content-hash = "04a1e405076c739a06f42905818b2b4ddfb84ea4c125b4fc1367ce4f2a7e8962"
+content-hash = "55db70f249c836504e4de5344395aa291c0fb1dd8a539ef80959ba0513101e61"
diff --git a/Chapter12/pyproject.toml b/Chapter12/pyproject.toml
index dc5bcc3..7257fda 100644
--- a/Chapter12/pyproject.toml
+++ b/Chapter12/pyproject.toml
@@ -22,7 +22,7 @@ torchmetrics="^1.3.0"
 torch-sparse = {url = "https://data.pyg.org/whl/torch-2.1.0%2Bcpu/torch_sparse-0.6.18%2Bpt21cpu-cp310-cp310-linux_x86_64.whl"}
 torch-scatter = {url = "https://data.pyg.org/whl/torch-2.1.0%2Bcpu/torch_scatter-2.1.2%2Bpt21cpu-cp310-cp310-linux_x86_64.whl"}
 neo4j-graphrag = {extras = ["ollama"], version="^1.6.1"}
-langchain-community = "^0.3.21"
+langchain-community = "^0.3.27"
 langchain-experimental = "^0.3.4"
 langchain-neo4j = "^0.4.0"
 langchain-openai = "^0.3.12"