diff --git a/prysm/Dockerfile.source b/prysm/Dockerfile.source
index aed510fa..44a9f646 100644
--- a/prysm/Dockerfile.source
+++ b/prysm/Dockerfile.source
@@ -1,5 +1,5 @@
 # Build Prysm in a stock Go build container
-FROM golang:1.20-bookworm as builder
+FROM golang:1.21-bookworm as builder
 
 # Here only to avoid build-time errors
 ARG DOCKER_TAG