diff --git a/studio/backend/requirements/single-env/data-designer-deps.txt b/studio/backend/requirements/single-env/data-designer-deps.txt
index 0cb42db01d..fc63230922 100644
--- a/studio/backend/requirements/single-env/data-designer-deps.txt
+++ b/studio/backend/requirements/single-env/data-designer-deps.txt
@@ -14,6 +14,7 @@ lxml<7,>=6.0.2
 marko<3,>=2.1.2
 mcp<2,>=1.26.0
 networkx<4,>=3.0
+python-json-logger>=3,<4
 ruff<1,>=0.14.10
 scipy<2,>=1.11.0
 sqlfluff<4,>=3.2.0