diff --git a/ci-operator/config/stolostron/multicluster-observability-operator/stolostron-multicluster-observability-operator-release-2.11.yaml b/ci-operator/config/stolostron/multicluster-observability-operator/stolostron-multicluster-observability-operator-release-2.11.yaml
index 2c695102eaba..99a6930ea860 100644
--- a/ci-operator/config/stolostron/multicluster-observability-operator/stolostron-multicluster-observability-operator-release-2.11.yaml
+++ b/ci-operator/config/stolostron/multicluster-observability-operator/stolostron-multicluster-observability-operator-release-2.11.yaml
@@ -11,7 +11,7 @@ build_root:
   image_stream_tag:
     name: builder
     namespace: stolostron
-    tag: go1.20-linux
+    tag: go1.21-linux
 images:
 - dockerfile_path: operators/multiclusterobservability/Dockerfile
   from: base
diff --git a/ci-operator/config/stolostron/multicluster-observability-operator/stolostron-multicluster-observability-operator-release-2.12.yaml b/ci-operator/config/stolostron/multicluster-observability-operator/stolostron-multicluster-observability-operator-release-2.12.yaml
index 4e8fbf5f785b..9851ab15f0cc 100644
--- a/ci-operator/config/stolostron/multicluster-observability-operator/stolostron-multicluster-observability-operator-release-2.12.yaml
+++ b/ci-operator/config/stolostron/multicluster-observability-operator/stolostron-multicluster-observability-operator-release-2.12.yaml
@@ -11,7 +11,7 @@ build_root:
   image_stream_tag:
     name: builder
     namespace: stolostron
-    tag: go1.20-linux
+    tag: go1.21-linux
 images:
 - dockerfile_path: operators/multiclusterobservability/Dockerfile
   from: base