diff --git a/pkg/app/pipedv1/apistore/applicationstore/store.go b/pkg/app/pipedv1/apistore/applicationstore/store.go
index b245c9b4a1..0b7fa6d3ca 100644
--- a/pkg/app/pipedv1/apistore/applicationstore/store.go
+++ b/pkg/app/pipedv1/apistore/applicationstore/store.go
@@ -149,8 +149,11 @@ func (s *store) ListByPluginName(name string) []*model.Application {
 	list := apps.([]*model.Application)
 
 	for _, app := range list {
-		if app.Plugin == name {
-			out = append(out, app)
+		for _, p := range app.Plugins {
+			if p == name {
+				out = append(out, app)
+				break
+			}
 		}
 	}
 
diff --git a/pkg/app/pipedv1/apistore/applicationstore/store_test.go b/pkg/app/pipedv1/apistore/applicationstore/store_test.go
new file mode 100644
index 0000000000..e0321d9a21
--- /dev/null
+++ b/pkg/app/pipedv1/apistore/applicationstore/store_test.go
@@ -0,0 +1,89 @@
+// Copyright 2024 The PipeCD Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package applicationstore
+
+import (
+	"testing"
+
+	"go.uber.org/atomic"
+	"go.uber.org/zap/zaptest"
+
+	"github.com/pipe-cd/pipecd/pkg/model"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestListByPluginName(t *testing.T) {
+	logger := zaptest.NewLogger(t)
+
+	tests := []struct {
+		name       string
+		storedApps []*model.Application
+		plugin     string
+		expected   []*model.Application
+	}{
+		{
+			name:       "There is no stored application",
+			storedApps: []*model.Application{},
+			plugin:     "plugin-a",
+			expected:   []*model.Application{},
+		},
+		{
+			name: "no matching",
+			storedApps: []*model.Application{
+				{Id: "app-1", Plugins: []string{"plugin-b"}},
+				{Id: "app-2", Plugins: []string{"plugin-c"}},
+			},
+			plugin:   "plugin-a",
+			expected: []*model.Application{},
+		},
+		{
+			name: "one matched application",
+			storedApps: []*model.Application{
+				{Id: "app-1", Plugins: []string{"plugin-a", "plugin-b"}},
+				{Id: "app-2", Plugins: []string{"plugin-b"}},
+			},
+			plugin: "plugin-a",
+			expected: []*model.Application{
+				{Id: "app-1", Plugins: []string{"plugin-a", "plugin-b"}},
+			},
+		},
+		{
+			name: "matched some applications",
+			storedApps: []*model.Application{
+				{Id: "app-1", Plugins: []string{"plugin-a", "plugin-b"}},
+				{Id: "app-2", Plugins: []string{"plugin-a"}},
+				{Id: "app-3", Plugins: []string{"plugin-b"}},
+			},
+			plugin: "plugin-a",
+			expected: []*model.Application{
+				{Id: "app-1", Plugins: []string{"plugin-a", "plugin-b"}},
+				{Id: "app-2", Plugins: []string{"plugin-a"}},
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			s := &store{
+				applicationList: atomic.Value{},
+				logger:          logger,
+			}
+			s.applicationList.Store(tt.storedApps)
+
+			got := s.ListByPluginName(tt.plugin)
+			assert.Equal(t, tt.expected, got)
+		})
+	}
+}
diff --git a/pkg/model/application.pb.go b/pkg/model/application.pb.go
index a4a404425b..8f4efc8cce 100644
--- a/pkg/model/application.pb.go
+++ b/pkg/model/application.pb.go
@@ -119,8 +119,8 @@ type Application struct {
 	PlatformProvider string `protobuf:"bytes,15,opt,name=platform_provider,json=platformProvider,proto3" json:"platform_provider,omitempty"`
 	// The names of deploy taget where to deploy this application.
 	DeployTargets []string `protobuf:"bytes,16,rep,name=deploy_targets,json=deployTargets,proto3" json:"deploy_targets,omitempty"`
-	// The name of plugin used to deploy this application.
-	Plugin string `protobuf:"bytes,17,opt,name=plugin,proto3" json:"plugin,omitempty"`
+	// The names of plugin used to deploy this application.
+	Plugins []string `protobuf:"bytes,17,rep,name=plugins,proto3" json:"plugins,omitempty"`
 	// Additional description about application.
 	Description string `protobuf:"bytes,9,opt,name=description,proto3" json:"description,omitempty"`
 	// Custom attributes to identify applications.
@@ -246,11 +246,11 @@ func (x *Application) GetDeployTargets() []string {
 	return nil
 }
 
-func (x *Application) GetPlugin() string {
+func (x *Application) GetPlugins() []string {
 	if x != nil {
-		return x.Plugin
+		return x.Plugins
 	}
-	return ""
+	return nil
 }
 
 func (x *Application) GetDescription() string {
@@ -524,7 +524,7 @@ var file_pkg_model_application_proto_rawDesc = []byte{
 	0x6b, 0x67, 0x2f, 0x6d, 0x6f, 0x64, 0x65, 0x6c, 0x2f, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e,
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-	0x6f, 0x22, 0xa9, 0x08, 0x0a, 0x0b, 0x41, 0x70, 0x70, 0x6c, 0x69, 0x63, 0x61, 0x74, 0x69, 0x6f,
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 	0x6e, 0x12, 0x17, 0x0a, 0x02, 0x69, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x42, 0x07, 0xfa,
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@@ -548,96 +548,97 @@ var file_pkg_model_application_proto_rawDesc = []byte{
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 }
 
 var (
diff --git a/pkg/model/application.pb.validate.go b/pkg/model/application.pb.validate.go
index b4e01beafd..520972b8c4 100644
--- a/pkg/model/application.pb.validate.go
+++ b/pkg/model/application.pb.validate.go
@@ -156,8 +156,6 @@ func (m *Application) validate(all bool) error {
 
 	// no validation rules for PlatformProvider
 
-	// no validation rules for Plugin
-
 	// no validation rules for Description
 
 	// no validation rules for Labels
diff --git a/pkg/model/application.proto b/pkg/model/application.proto
index 9328f30fb0..df656f9da8 100644
--- a/pkg/model/application.proto
+++ b/pkg/model/application.proto
@@ -45,8 +45,8 @@ message Application {
     string platform_provider = 15;
     // The names of deploy taget where to deploy this application.
     repeated string deploy_targets = 16;
-    // The name of plugin used to deploy this application.
-    string plugin = 17;
+    // The names of plugin used to deploy this application.
+    repeated string plugins = 17;
     // Additional description about application.
     string description = 9;
     // Custom attributes to identify applications.
diff --git a/web/model/application_pb.d.ts b/web/model/application_pb.d.ts
index d91b9897ba..2e05f7ea3d 100644
--- a/web/model/application_pb.d.ts
+++ b/web/model/application_pb.d.ts
@@ -37,8 +37,10 @@ export class Application extends jspb.Message {
   clearDeployTargetsList(): Application;
   addDeployTargets(value: string, index?: number): Application;
 
-  getPlugin(): string;
-  setPlugin(value: string): Application;
+  getPluginsList(): Array<string>;
+  setPluginsList(value: Array<string>): Application;
+  clearPluginsList(): Application;
+  addPlugins(value: string, index?: number): Application;
 
   getDescription(): string;
   setDescription(value: string): Application;
@@ -98,7 +100,7 @@ export namespace Application {
     cloudProvider: string,
     platformProvider: string,
     deployTargetsList: Array<string>,
-    plugin: string,
+    pluginsList: Array<string>,
     description: string,
     labelsMap: Array<[string, string]>,
     mostRecentlySuccessfulDeployment?: ApplicationDeploymentReference.AsObject,
diff --git a/web/model/application_pb.js b/web/model/application_pb.js
index c6c6d096cf..3aff25ade9 100644
--- a/web/model/application_pb.js
+++ b/web/model/application_pb.js
@@ -100,7 +100,7 @@ if (goog.DEBUG && !COMPILED) {
  * @private {!Array<number>}
  * @const
  */
-proto.model.Application.repeatedFields_ = [16];
+proto.model.Application.repeatedFields_ = [16,17];
 
 
 
@@ -142,7 +142,7 @@ proto.model.Application.toObject = function(includeInstance, msg) {
     cloudProvider: jspb.Message.getFieldWithDefault(msg, 8, ""),
     platformProvider: jspb.Message.getFieldWithDefault(msg, 15, ""),
     deployTargetsList: (f = jspb.Message.getRepeatedField(msg, 16)) == null ? undefined : f,
-    plugin: jspb.Message.getFieldWithDefault(msg, 17, ""),
+    pluginsList: (f = jspb.Message.getRepeatedField(msg, 17)) == null ? undefined : f,
     description: jspb.Message.getFieldWithDefault(msg, 9, ""),
     labelsMap: (f = msg.getLabelsMap()) ? f.toObject(includeInstance, undefined) : [],
     mostRecentlySuccessfulDeployment: (f = msg.getMostRecentlySuccessfulDeployment()) && proto.model.ApplicationDeploymentReference.toObject(includeInstance, f),
@@ -229,7 +229,7 @@ proto.model.Application.deserializeBinaryFromReader = function(msg, reader) {
       break;
     case 17:
       var value = /** @type {string} */ (reader.readString());
-      msg.setPlugin(value);
+      msg.addPlugins(value);
       break;
     case 9:
       var value = /** @type {string} */ (reader.readString());
@@ -373,9 +373,9 @@ proto.model.Application.serializeBinaryToWriter = function(message, writer) {
       f
     );
   }
-  f = message.getPlugin();
+  f = message.getPluginsList();
   if (f.length > 0) {
-    writer.writeString(
+    writer.writeRepeatedString(
       17,
       f
     );
@@ -661,20 +661,39 @@ proto.model.Application.prototype.clearDeployTargetsList = function() {
 
 
 /**
- * optional string plugin = 17;
- * @return {string}
+ * repeated string plugins = 17;
+ * @return {!Array<string>}
  */
-proto.model.Application.prototype.getPlugin = function() {
-  return /** @type {string} */ (jspb.Message.getFieldWithDefault(this, 17, ""));
+proto.model.Application.prototype.getPluginsList = function() {
+  return /** @type {!Array<string>} */ (jspb.Message.getRepeatedField(this, 17));
+};
+
+
+/**
+ * @param {!Array<string>} value
+ * @return {!proto.model.Application} returns this
+ */
+proto.model.Application.prototype.setPluginsList = function(value) {
+  return jspb.Message.setField(this, 17, value || []);
 };
 
 
 /**
  * @param {string} value
+ * @param {number=} opt_index
+ * @return {!proto.model.Application} returns this
+ */
+proto.model.Application.prototype.addPlugins = function(value, opt_index) {
+  return jspb.Message.addToRepeatedField(this, 17, value, opt_index);
+};
+
+
+/**
+ * Clears the list making it empty but non-null.
  * @return {!proto.model.Application} returns this
  */
-proto.model.Application.prototype.setPlugin = function(value) {
-  return jspb.Message.setProto3StringField(this, 17, value);
+proto.model.Application.prototype.clearPluginsList = function() {
+  return this.setPluginsList([]);
 };
 
 
diff --git a/web/src/__fixtures__/dummy-application.ts b/web/src/__fixtures__/dummy-application.ts
index a32123b7e9..c2d58b2e90 100644
--- a/web/src/__fixtures__/dummy-application.ts
+++ b/web/src/__fixtures__/dummy-application.ts
@@ -26,7 +26,7 @@ export const dummyApplication: Application.AsObject = {
   cloudProvider: "",
   platformProvider: "kubernetes-default",
   deployTargetsList: ["kubernetes-default"],
-  plugin: "",
+  pluginsList: ["kubernetes"],
   disabled: false,
   gitPath: {
     configFilename: "",
@@ -134,6 +134,7 @@ export function createApplicationFromObject(
   app.setId(o.id);
   app.setPlatformProvider(o.platformProvider);
   app.setDeployTargetsList(o.deployTargetsList);
+  app.setPluginsList(o.pluginsList);
   app.setDisabled(o.disabled);
   app.setKind(o.kind);
   app.setName(o.name);