diff --git a/Dockerfile.build b/Dockerfile.build
index d40cac6..6487d7e 100644
--- a/Dockerfile.build
+++ b/Dockerfile.build
@@ -1,4 +1,4 @@
-FROM golang:1.26.6-bookworm
+FROM golang:1.27rc3-bookworm
 
 # hadolint ignore=DL3027
 RUN apt-get update \