diff --git a/pyproject.toml b/pyproject.toml
index 9b41b4bb..2057bc51 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ dependencies = [
     "azure-monitor-opentelemetry==1.8.3",
     "azure-storage-blob==12.23.1",
     "langdetect==1.0.9",
-    "langchain==1.1.0",
+    "langchain==1.2.12",
     "langchain-text-splitters==1.0.0",
     "openai==2.8.1",
     "pydantic==2.12.5",
diff --git a/redactor/requirements.txt b/redactor/requirements.txt
index 446818a9..1b849b9e 100644
--- a/redactor/requirements.txt
+++ b/redactor/requirements.txt
@@ -7,7 +7,7 @@ azure-storage-blob==12.23.1
 azure-servicebus==7.14.3
 coverage==7.12.0
 filelock==3.25.2
-langchain==1.1.0
+langchain==1.2.12
 langchain-text-splitters==1.0.0
 langdetect==1.0.9
 mock==5.2.0