diff --git a/windows/Dockerfile b/windows/Dockerfile
index 240e270..a059284 100644
--- a/windows/Dockerfile
+++ b/windows/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.25.5-nanoserver AS build-backend
+FROM golang:1.26rc2-nanoserver AS build-backend
 LABEL builder=true
 
 ENV CGO_ENABLED=0