diff --git a/pyproject.toml b/pyproject.toml
index 2878f625f..0613cb3f7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -170,7 +170,7 @@ metrics = [  # for metrics
   "scipy>=1.3.2",
   "rapidfuzz>=2.0.15,<2.8.0",   # FIXME https://github.com/deepset-ai/haystack/pull/3199
   "seqeval",
-  "mlflow",
+  "mlflow<2.4.0",
 ]
 ray = [
   "ray[serve]>=1.9.1,<2; platform_system != 'Windows'",