diff --git a/prow/cluster/jobs/istio-private/proxy/istio-private.proxy.master.gen.yaml b/prow/cluster/jobs/istio-private/proxy/istio-private.proxy.master.gen.yaml
index e06d0a14eff..cd5abb73cf9 100644
--- a/prow/cluster/jobs/istio-private/proxy/istio-private.proxy.master.gen.yaml
+++ b/prow/cluster/jobs/istio-private/proxy/istio-private.proxy.master.gen.yaml
@@ -392,7 +392,6 @@ presubmits:
       preset-service-account: "true"
       preset-use-go-control-plane-api-private: "true"
     name: release-centos-test_proxy_master_priv
-    optional: true
     path_alias: istio.io/proxy
     spec:
       containers:
diff --git a/prow/cluster/jobs/istio/proxy/istio.proxy.master.gen.yaml b/prow/cluster/jobs/istio/proxy/istio.proxy.master.gen.yaml
index 0e5b91a4e9c..40128585fd9 100644
--- a/prow/cluster/jobs/istio/proxy/istio.proxy.master.gen.yaml
+++ b/prow/cluster/jobs/istio/proxy/istio.proxy.master.gen.yaml
@@ -304,7 +304,6 @@ presubmits:
     labels:
       preset-service-account: "true"
     name: release-centos-test_proxy
-    optional: true
     path_alias: istio.io/proxy
     spec:
       containers:
diff --git a/prow/config/jobs/proxy.yaml b/prow/config/jobs/proxy.yaml
index d5081e01a3e..f3d0602cd36 100644
--- a/prow/config/jobs/proxy.yaml
+++ b/prow/config/jobs/proxy.yaml
@@ -35,8 +35,6 @@ jobs:
   command: [./prow/proxy-presubmit-centos-release.sh]
   requirements: [gcp]
   image: gcr.io/istio-testing/build-tools-centos:master-2021-05-07T04-05-01
-  # Current optional until further testing is done to ensure stability
-  modifiers: [optional]
   timeout: 4h
 
 - name: check-wasm