diff --git a/changelog/unreleased/collaboration-gateway-selector.md b/changelog/unreleased/collaboration-gateway-selector.md
new file mode 100644
index 000000000..c58869813
--- /dev/null
+++ b/changelog/unreleased/collaboration-gateway-selector.md
@@ -0,0 +1,3 @@
+Bugfix: Make collaboration service use a gateway selector
+
+https://github.com/owncloud/ocis/pull/10584
diff --git a/services/collaboration/pkg/service/grpc/v0/option.go b/services/collaboration/pkg/service/grpc/v0/option.go
index 2fafbee81..c2e5e70c8 100644
--- a/services/collaboration/pkg/service/grpc/v0/option.go
+++ b/services/collaboration/pkg/service/grpc/v0/option.go
@@ -2,9 +2,11 @@ package service
 
 import (
 	gatewayv1beta1 "github.com/cs3org/go-cs3apis/cs3/gateway/v1beta1"
+	"github.com/cs3org/reva/v2/pkg/rgrpc/todo/pool"
+	microstore "go-micro.dev/v4/store"
+
 	"github.com/owncloud/ocis/v2/ocis-pkg/log"
 	"github.com/owncloud/ocis/v2/services/collaboration/pkg/config"
-	microstore "go-micro.dev/v4/store"
 )
 
 // Option defines a single option function.
@@ -12,11 +14,11 @@ type Option func(o *Options)
 
 // Options defines the available options for this package.
 type Options struct {
-	Logger  log.Logger
-	Config  *config.Config
-	AppURLs map[string]map[string]string
-	Gwc     gatewayv1beta1.GatewayAPIClient
-	Store   microstore.Store
+	Logger          log.Logger
+	Config          *config.Config
+	AppURLs         map[string]map[string]string
+	GatewaySelector pool.Selectable[gatewayv1beta1.GatewayAPIClient]
+	Store           microstore.Store
 }
 
 // newOptions initializes the available default options.
@@ -51,10 +53,10 @@ func AppURLs(val map[string]map[string]string) Option {
 	}
 }
 
-// GatewayAPIClient provides a function to set the GatewayAPIClient option.
-func GatewayAPIClient(val gatewayv1beta1.GatewayAPIClient) Option {
+// GatewaySelector provides a function to set the GatewaySelector option.
+func GatewaySelector(val pool.Selectable[gatewayv1beta1.GatewayAPIClient]) Option {
 	return func(o *Options) {
-		o.Gwc = val
+		o.GatewaySelector = val
 	}
 }
 
diff --git a/services/collaboration/pkg/service/grpc/v0/service.go b/services/collaboration/pkg/service/grpc/v0/service.go
index 74e12be13..f1b3ae1b9 100644
--- a/services/collaboration/pkg/service/grpc/v0/service.go
+++ b/services/collaboration/pkg/service/grpc/v0/service.go
@@ -16,13 +16,13 @@ import (
 	"github.com/cs3org/reva/v2/pkg/rgrpc/todo/pool"
 	"github.com/cs3org/reva/v2/pkg/storagespace"
 	"github.com/cs3org/reva/v2/pkg/utils"
-	"github.com/owncloud/ocis/v2/services/collaboration/pkg/wopisrc"
+	microstore "go-micro.dev/v4/store"
 
 	"github.com/owncloud/ocis/v2/ocis-pkg/log"
 	"github.com/owncloud/ocis/v2/services/collaboration/pkg/config"
 	"github.com/owncloud/ocis/v2/services/collaboration/pkg/helpers"
 	"github.com/owncloud/ocis/v2/services/collaboration/pkg/middleware"
-	microstore "go-micro.dev/v4/store"
+	"github.com/owncloud/ocis/v2/services/collaboration/pkg/wopisrc"
 )
 
 // NewHandler creates a new grpc service implementing the OpenInApp interface
@@ -33,33 +33,33 @@ func NewHandler(opts ...Option) (*Service, func(), error) {
 	}
 	options := newOptions(opts...)
 
-	gwc := options.Gwc
+	gatewaySelector := options.GatewaySelector
 	var err error
-	if gwc == nil {
-		gwc, err = pool.GetGatewayServiceClient(options.Config.CS3Api.Gateway.Name)
+	if gatewaySelector == nil {
+		gatewaySelector, err = pool.GatewaySelector(options.Config.CS3Api.Gateway.Name)
 		if err != nil {
 			return nil, teardown, err
 		}
 	}
 
 	return &Service{
-		id:      options.Config.GRPC.Namespace + "." + options.Config.Service.Name + "." + options.Config.App.Name,
-		appURLs: options.AppURLs,
-		logger:  options.Logger,
-		config:  options.Config,
-		gwc:     gwc,
-		store:   options.Store,
+		id:              options.Config.GRPC.Namespace + "." + options.Config.Service.Name + "." + options.Config.App.Name,
+		appURLs:         options.AppURLs,
+		logger:          options.Logger,
+		config:          options.Config,
+		gatewaySelector: gatewaySelector,
+		store:           options.Store,
 	}, teardown, nil
 }
 
 // Service implements the OpenInApp interface
 type Service struct {
-	id      string
-	appURLs map[string]map[string]string
-	logger  log.Logger
-	config  *config.Config
-	gwc     gatewayv1beta1.GatewayAPIClient
-	store   microstore.Store
+	id              string
+	appURLs         map[string]map[string]string
+	logger          log.Logger
+	config          *config.Config
+	gatewaySelector pool.Selectable[gatewayv1beta1.GatewayAPIClient]
+	store           microstore.Store
 }
 
 // OpenInApp will implement the OpenInApp interface of the app provider
@@ -73,7 +73,13 @@ func (s *Service) OpenInApp(
 	meReq := &gatewayv1beta1.WhoAmIRequest{
 		Token: req.GetAccessToken(),
 	}
-	meResp, err := s.gwc.WhoAmI(ctx, meReq)
+	gwc, err := s.gatewaySelector.Next()
+	if err != nil {
+		s.logger.Error().Err(err).Msg("OpenInApp: could not select a gateway client")
+		return nil, err
+	}
+
+	meResp, err := gwc.WhoAmI(ctx, meReq)
 	if err == nil {
 		if meResp.GetStatus().GetCode() == rpcv1beta1.Code_CODE_OK {
 			user = meResp.GetUser()
diff --git a/services/collaboration/pkg/service/grpc/v0/service_test.go b/services/collaboration/pkg/service/grpc/v0/service_test.go
index 1c2359ad8..414c45ed8 100644
--- a/services/collaboration/pkg/service/grpc/v0/service_test.go
+++ b/services/collaboration/pkg/service/grpc/v0/service_test.go
@@ -5,12 +5,6 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/cs3org/reva/v2/pkg/utils"
-	"github.com/golang-jwt/jwt/v5"
-	. "github.com/onsi/ginkgo/v2"
-	. "github.com/onsi/gomega"
-	"github.com/stretchr/testify/mock"
-
 	appproviderv1beta1 "github.com/cs3org/go-cs3apis/cs3/app/provider/v1beta1"
 	authpb "github.com/cs3org/go-cs3apis/cs3/auth/provider/v1beta1"
 	gatewayv1beta1 "github.com/cs3org/go-cs3apis/cs3/gateway/v1beta1"
@@ -18,10 +12,16 @@ import (
 	rpcv1beta1 "github.com/cs3org/go-cs3apis/cs3/rpc/v1beta1"
 	providerv1beta1 "github.com/cs3org/go-cs3apis/cs3/storage/provider/v1beta1"
 	types "github.com/cs3org/go-cs3apis/cs3/types/v1beta1"
-
 	"github.com/cs3org/reva/v2/pkg/rgrpc/status"
+	"github.com/cs3org/reva/v2/pkg/utils"
 	cs3mocks "github.com/cs3org/reva/v2/tests/cs3mocks/mocks"
+	"github.com/golang-jwt/jwt/v5"
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+	"github.com/stretchr/testify/mock"
+
 	"github.com/owncloud/ocis/v2/ocis-pkg/log"
+	"github.com/owncloud/ocis/v2/services/collaboration/mocks"
 	"github.com/owncloud/ocis/v2/services/collaboration/pkg/config"
 	service "github.com/owncloud/ocis/v2/services/collaboration/pkg/service/grpc/v0"
 )
@@ -77,23 +77,26 @@ var _ = Describe("Discovery", func() {
 		cfg = &config.Config{}
 		gatewayClient = &cs3mocks.GatewayAPIClient{}
 
+		gatewaySelector := mocks.NewSelectable[gatewayv1beta1.GatewayAPIClient](GinkgoT())
+		gatewaySelector.On("Next").Return(gatewayClient, nil)
+
 		srv, srvTear, _ = service.NewHandler(
 			service.Logger(log.NopLogger()),
 			service.Config(cfg),
 			service.AppURLs(map[string]map[string]string{
-				"view": map[string]string{
+				"view": {
 					".pdf":  "https://test.server.prv/hosting/wopi/word/view",
 					".djvu": "https://test.server.prv/hosting/wopi/word/view",
 					".docx": "https://test.server.prv/hosting/wopi/word/view",
 					".xls":  "https://test.server.prv/hosting/wopi/cell/view",
 					".xlsb": "https://test.server.prv/hosting/wopi/cell/view",
 				},
-				"edit": map[string]string{
+				"edit": {
 					".docx":    "https://test.server.prv/hosting/wopi/word/edit",
 					".invalid": "://test.server.prv/hosting/wopi/cell/edit",
 				},
 			}),
-			service.GatewayAPIClient(gatewayClient),
+			service.GatewaySelector(gatewaySelector),
 		)
 	})