diff --git a/artifacts/flagger/crd.yaml b/artifacts/flagger/crd.yaml
index e138b66d4..4baf9c609 100644
--- a/artifacts/flagger/crd.yaml
+++ b/artifacts/flagger/crd.yaml
@@ -85,6 +85,26 @@ spec:
                 provider:
                   description: Traffic managent provider
                   type: string
+                  enum:
+                    - apisix
+                    - appmesh
+                    - appmesh:v1beta2
+                    - contour
+                    - gatewayapi:v1
+                    - gatewayapi:v1beta1
+                    - gloo
+                    - istio
+                    - knative
+                    - kubernetes
+                    - kuma
+                    - linkerd
+                    - nginx
+                    - osm
+                    - skipper
+                    - smi:v1alpha1
+                    - smi:v1alpha2
+                    - smi:v1alpha3
+                    - traefik
                 metricsServer:
                   description: Prometheus URL
                   type: string
diff --git a/charts/flagger/crds/crd.yaml b/charts/flagger/crds/crd.yaml
index e138b66d4..4baf9c609 100644
--- a/charts/flagger/crds/crd.yaml
+++ b/charts/flagger/crds/crd.yaml
@@ -85,6 +85,26 @@ spec:
                 provider:
                   description: Traffic managent provider
                   type: string
+                  enum:
+                    - apisix
+                    - appmesh
+                    - appmesh:v1beta2
+                    - contour
+                    - gatewayapi:v1
+                    - gatewayapi:v1beta1
+                    - gloo
+                    - istio
+                    - knative
+                    - kubernetes
+                    - kuma
+                    - linkerd
+                    - nginx
+                    - osm
+                    - skipper
+                    - smi:v1alpha1
+                    - smi:v1alpha2
+                    - smi:v1alpha3
+                    - traefik
                 metricsServer:
                   description: Prometheus URL
                   type: string
diff --git a/charts/flagger/values.yaml b/charts/flagger/values.yaml
index dbc9fc017..b274b9cb3 100644
--- a/charts/flagger/values.yaml
+++ b/charts/flagger/values.yaml
@@ -32,7 +32,7 @@ serviceMonitor:
   # Set labels for the ServiceMonitor, use this to define your scrape label for Prometheus Operator
   # labels:
 
-# accepted values are kubernetes, istio, linkerd, appmesh, contour, nginx, gloo, skipper, traefik, apisix
+# accepted values are apisix, appmesh, appmesh:v1beta2, contour, gatewayapi:v1, gatewayapi:v1beta1, gloo, istio, knative, kubernetes, kuma, linkerd, nginx, osm, skipper, smi:v1alpha1, smi:v1alpha2, smi:v1alpha3, traefik
 meshProvider: ""
 
 # single namespace restriction
diff --git a/cmd/flagger/main.go b/cmd/flagger/main.go
index fa7bb1a94..2031c506f 100644
--- a/cmd/flagger/main.go
+++ b/cmd/flagger/main.go
@@ -112,7 +112,7 @@ func init() {
 	flag.BoolVar(&zapReplaceGlobals, "zap-replace-globals", false, "Whether to change the logging level of the global zap logger.")
 	flag.StringVar(&zapEncoding, "zap-encoding", "json", "Zap logger encoding.")
 	flag.StringVar(&namespace, "namespace", "", "Namespace that flagger would watch canary object.")
-	flag.StringVar(&meshProvider, "mesh-provider", "istio", "Service mesh provider, can be istio, linkerd, appmesh, contour, knative, gloo, nginx, skipper, traefik, apisix, osm or kuma.")
+	flag.StringVar(&meshProvider, "mesh-provider", "istio", "Service mesh provider, can be apisix, appmesh, appmesh:v1beta2, contour, gatewayapi:v1, gatewayapi:v1beta1, gloo, istio, knative, kubernetes, kuma, linkerd, nginx, osm, skipper, smi:v1alpha1, smi:v1alpha2, smi:v1alpha3, or traefik.")
 	flag.StringVar(&selectorLabels, "selector-labels", "app,name,app.kubernetes.io/name", "List of pod labels that Flagger uses to create pod selectors.")
 	flag.StringVar(&ingressAnnotationsPrefix, "ingress-annotations-prefix", "nginx.ingress.kubernetes.io", "Annotations prefix for NGINX ingresses.")
 	flag.StringVar(&ingressClass, "ingress-class", "", "Ingress class used for annotating HTTPProxy objects.")
diff --git a/kustomize/base/flagger/crd.yaml b/kustomize/base/flagger/crd.yaml
index e138b66d4..4baf9c609 100644
--- a/kustomize/base/flagger/crd.yaml
+++ b/kustomize/base/flagger/crd.yaml
@@ -85,6 +85,26 @@ spec:
                 provider:
                   description: Traffic managent provider
                   type: string
+                  enum:
+                    - apisix
+                    - appmesh
+                    - appmesh:v1beta2
+                    - contour
+                    - gatewayapi:v1
+                    - gatewayapi:v1beta1
+                    - gloo
+                    - istio
+                    - knative
+                    - kubernetes
+                    - kuma
+                    - linkerd
+                    - nginx
+                    - osm
+                    - skipper
+                    - smi:v1alpha1
+                    - smi:v1alpha2
+                    - smi:v1alpha3
+                    - traefik
                 metricsServer:
                   description: Prometheus URL
                   type: string