diff --git a/build.assets/Dockerfile-grpcbox b/build.assets/Dockerfile-grpcbox
index 9755d05caa681..f018833cf1ea2 100644
--- a/build.assets/Dockerfile-grpcbox
+++ b/build.assets/Dockerfile-grpcbox
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM docker.io/golang:1.21
+FROM docker.io/golang:1.22
 
 # Image layers go from less likely to most likely to change.
 RUN apt-get update && \