diff --git a/Dockerfile.agent b/Dockerfile.agent
index f1beaa8..066a3b7 100644
--- a/Dockerfile.agent
+++ b/Dockerfile.agent
@@ -1,4 +1,4 @@
-ARG GOLANG_BUILDER=registry.access.redhat.com/ubi9/go-toolset:1.20
+ARG GOLANG_BUILDER=registry.access.redhat.com/ubi9/go-toolset:1.21
 ARG OPERATOR_BASE_IMAGE=registry.access.redhat.com/ubi9/ubi-minimal:latest
 
 # Build the manager binary