diff --git a/cmd/testdata/testsvc/Dockerfile b/cmd/testdata/testsvc/Dockerfile
index 450b116e..94c4e10f 100644
--- a/cmd/testdata/testsvc/Dockerfile
+++ b/cmd/testdata/testsvc/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.21rc3-alpine AS builder
+FROM golang:1.22.6-alpine AS builder
 
 ENV GO111MODULE=on
 ARG user