diff --git a/vizro-ai/pyproject.toml b/vizro-ai/pyproject.toml
index fc1160234..0dfbf52c9 100644
--- a/vizro-ai/pyproject.toml
+++ b/vizro-ai/pyproject.toml
@@ -16,7 +16,7 @@ dependencies = [
   "pandas",
   "tabulate",
   "openai>=0.27.8,<1.0.0",  # TODO add support for openai>=1.0.0
-  "langchain==0.0.325",
+  "langchain==0.0.329",
   "python-dotenv>=1.0.0",  # TODO decide env var management to see if we need this
   "vizro>=0.1.4",  # TODO set upper bound later
   "ipython>=8.10.0",  # not directly required, pinned by Snyk to avoid a vulnerability: https://app.snyk.io/vuln/SNYK-PYTHON-IPYTHON-3318382
diff --git a/vizro-ai/snyk/requirements.txt b/vizro-ai/snyk/requirements.txt
index 3bf593347..b8196cca0 100644
--- a/vizro-ai/snyk/requirements.txt
+++ b/vizro-ai/snyk/requirements.txt
@@ -1,7 +1,7 @@
 pandas
 tabulate
 openai>=0.27.8,<1.0.0
-langchain==0.0.325
+langchain==0.0.329
 python-dotenv>=1.0.0
 vizro>=0.1.4
 ipython>=8.10.0