diff --git a/server/requirements.txt b/server/requirements.txt
index 5298e03..1bf9145 100644
--- a/server/requirements.txt
+++ b/server/requirements.txt
@@ -18,7 +18,7 @@ openai>=1.35.0
 
 # Observability (optional OTEL bridge)
 opentelemetry-api>=1.27.0
-opentelemetry-sdk>=1.27.0
+opentelemetry-sdk>=1.42.1
 
 # Optional: Redis for distributed rate limiting
 # redis>=5.0.0