diff --git a/requirements.txt b/requirements.txt
index c1299a8..b7477cd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ streamlit==1.49.1
 prometheus-client==0.20.0
 opentelemetry-api==1.24.0
 opentelemetry-sdk==1.24.0
-opentelemetry-instrumentation-fastapi==0.45b0
+opentelemetry-instrumentation-fastapi==0.66b0
 
 # --- Experiment tracking ---
 mlflow==3.16.0