From 36c6762026757ec71983118666a3cd7a4ecaea1c Mon Sep 17 00:00:00 2001
From: Manuel Raynaud <manu@raynaud.io>
Date: Wed, 11 Mar 2026 10:54:26 +0100
Subject: [PATCH] =?UTF-8?q?=E2=AC=87=EF=B8=8F(backend)=20downgrade=20langf?=
 =?UTF-8?q?use=20to=20version=203.11.2?=
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We to keep in sync the version of the sdk client and the version of the
langfuse server. For now we can't upgrade langfuse See
https://github.com/langfuse/langfuse/issues/11564
---
 renovate.json              | 6 ++++++
 src/backend/pyproject.toml | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/renovate.json b/renovate.json
index 25e7e3d5..0a8f52d6 100644
--- a/renovate.json
+++ b/renovate.json
@@ -43,6 +43,12 @@
       "matchPackageNames": ["pydantic-ai-slim"],
       "allowedVersions": "<1.59.0"
     },
+    {
+      "groupName": "allowed langfuse versions",
+      "matchManagers": ["pep621"],
+      "matchPackageNames": ["langfuse"],
+      "allowedVersions": "<3.12.0"
+    },
     {
       "enabled": false,
       "groupName": "ignored js dependencies",
diff --git a/src/backend/pyproject.toml b/src/backend/pyproject.toml
index c6bb8f7e..734350b3 100644
--- a/src/backend/pyproject.toml
+++ b/src/backend/pyproject.toml
@@ -48,7 +48,7 @@ dependencies = [
     "factory_boy==3.3.3",
     "gunicorn==25.1.0",
     "jsonschema==4.26.0",
-    "langfuse==3.14.5",
+    "langfuse==3.11.2",
     "lxml==6.0.2",
     "markdown==3.10.2",
     "mozilla-django-oidc==5.0.2",