diff --git a/charts/ingress-controller/Chart.yaml b/charts/ingress-controller/Chart.yaml
index 7022891..9963545 100644
--- a/charts/ingress-controller/Chart.yaml
+++ b/charts/ingress-controller/Chart.yaml
@@ -6,7 +6,7 @@ keywords:
   - api7
   - crd
 type: application
-version: 0.1.24
+version: 0.1.25
 appVersion: 2.1.0
 maintainers:
   - name: API7
diff --git a/charts/ingress-controller/README.md b/charts/ingress-controller/README.md
index 252685d..fbf8377 100644
--- a/charts/ingress-controller/README.md
+++ b/charts/ingress-controller/README.md
@@ -1,6 +1,6 @@
 # api7-ingress-controller
 
-![Version: 0.1.24](https://img.shields.io/badge/Version-0.1.24-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 2.1.0](https://img.shields.io/badge/AppVersion-2.1.0-informational?style=flat-square)
+![Version: 0.1.25](https://img.shields.io/badge/Version-0.1.25-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 2.1.0](https://img.shields.io/badge/AppVersion-2.1.0-informational?style=flat-square)
 
 Ingress Controller for API7
 
diff --git a/charts/ingress-controller/crds/apisix-crds.yaml b/charts/ingress-controller/crds/apisix-crds.yaml
index 8d26c8e..0109d42 100644
--- a/charts/ingress-controller/crds/apisix-crds.yaml
+++ b/charts/ingress-controller/crds/apisix-crds.yaml
@@ -2033,12 +2033,18 @@ spec:
                       description: |-
                         Scheme is the protocol used to communicate with the upstream.
                         Default is `http`.
-                        Can be `http`, `https`, `grpc`, or `grpcs`.
+                        For L7 proxy, it can be `http`, `https`, `grpc`, or `grpcs`.
+                        For L4 proxy, it can be `tcp`, `tls`, or `udp`.
+                        The L4 values apply to stream routes only; using them for an HTTP route
+                        makes the upstream unreachable.
                       enum:
                       - http
                       - https
                       - grpc
                       - grpcs
+                      - tcp
+                      - tls
+                      - udp
                       type: string
                     subsets:
                       description: |-
@@ -2112,12 +2118,18 @@ spec:
                 description: |-
                   Scheme is the protocol used to communicate with the upstream.
                   Default is `http`.
-                  Can be `http`, `https`, `grpc`, or `grpcs`.
+                  For L7 proxy, it can be `http`, `https`, `grpc`, or `grpcs`.
+                  For L4 proxy, it can be `tcp`, `tls`, or `udp`.
+                  The L4 values apply to stream routes only; using them for an HTTP route
+                  makes the upstream unreachable.
                 enum:
                 - http
                 - https
                 - grpc
                 - grpcs
+                - tcp
+                - tls
+                - udp
                 type: string
               subsets:
                 description: |-
@@ -2529,12 +2541,18 @@ spec:
                 description: |-
                   Scheme is the protocol used to communicate with the upstream.
                   Default is `http`.
-                  Can be `http`, `https`, `grpc`, or `grpcs`.
+                  For L7 proxy, it can be `http`, `https`, `grpc`, or `grpcs`.
+                  For L4 proxy, it can be `tcp`, `tls`, or `udp`.
+                  The L4 values apply to stream routes only; using them for an HTTP route
+                  makes the upstream unreachable.
                 enum:
                 - http
                 - https
                 - grpc
                 - grpcs
+                - tcp
+                - tls
+                - udp
                 type: string
               targetRefs:
                 description: |-