diff --git a/dev-requirements.txt b/dev-requirements.txt
index 24474aa..41ce4b7 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -24,7 +24,7 @@ googleapis-common-protos==1.66.0
     # via
     #   opentelemetry-exporter-otlp-proto-grpc
     #   opentelemetry-exporter-otlp-proto-http
-grpcio==1.69.0
+grpcio==1.70.0
     # via
     #   opentelemetry-exporter-otlp-proto-grpc
     #   oteltest