diff --git a/pkg/ingester/client/mimir_util_test.go b/pkg/ingester/client/mimir_util_test.go
index f1b18f2530..672c1f8553 100644
--- a/pkg/ingester/client/mimir_util_test.go
+++ b/pkg/ingester/client/mimir_util_test.go
@@ -18,6 +18,7 @@ import (
 	"github.com/stretchr/testify/mock"
 	"github.com/stretchr/testify/require"
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
 	"google.golang.org/grpc/test/bufconn"
 )
 
@@ -29,7 +30,7 @@ func TestSendQueryStream(t *testing.T) {
 		return listen.Dial()
 	}
 
-	conn, err := grpc.DialContext(context.Background(), "bufnet", grpc.WithContextDialer(bufDialer), grpc.WithInsecure())
+	conn, err := grpc.DialContext(context.Background(), "bufnet", grpc.WithContextDialer(bufDialer), grpc.WithTransportCredentials(insecure.NewCredentials()))
 	require.NoError(t, err)
 	defer conn.Close()
 
diff --git a/pkg/mimir/mimir_test.go b/pkg/mimir/mimir_test.go
index a6cae907b0..352b4ecde6 100644
--- a/pkg/mimir/mimir_test.go
+++ b/pkg/mimir/mimir_test.go
@@ -35,6 +35,7 @@ import (
 	"github.com/weaveworks/common/server"
 	"go.uber.org/atomic"
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
 
 	"github.com/grafana/mimir/pkg/alertmanager"
 	"github.com/grafana/mimir/pkg/alertmanager/alertstore"
@@ -362,7 +363,7 @@ func TestGrpcAuthMiddleware(t *testing.T) {
 		}()
 	}
 
-	conn, err := grpc.Dial(net.JoinHostPort(cfg.Server.GRPCListenAddress, strconv.Itoa(cfg.Server.GRPCListenPort)), grpc.WithInsecure())
+	conn, err := grpc.Dial(net.JoinHostPort(cfg.Server.GRPCListenAddress, strconv.Itoa(cfg.Server.GRPCListenPort)), grpc.WithTransportCredentials(insecure.NewCredentials()))
 	require.NoError(t, err)
 	defer func() {
 		require.NoError(t, conn.Close())
diff --git a/pkg/querier/worker/frontend_processor_test.go b/pkg/querier/worker/frontend_processor_test.go
index 81d546cb19..535532371b 100644
--- a/pkg/querier/worker/frontend_processor_test.go
+++ b/pkg/querier/worker/frontend_processor_test.go
@@ -16,6 +16,7 @@ import (
 	"github.com/stretchr/testify/require"
 	"go.uber.org/atomic"
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
 )
 
 func TestRecvFailDoesntCancelProcess(t *testing.T) {
@@ -23,7 +24,7 @@ func TestRecvFailDoesntCancelProcess(t *testing.T) {
 	defer cancel()
 
 	// We use random port here, hopefully without any gRPC server.
-	cc, err := grpc.DialContext(ctx, "localhost:999", grpc.WithInsecure())
+	cc, err := grpc.DialContext(ctx, "localhost:999", grpc.WithTransportCredentials(insecure.NewCredentials()))
 	require.NoError(t, err)
 
 	cfg := Config{}
@@ -56,7 +57,7 @@ func TestContextCancelStopsProcess(t *testing.T) {
 	defer cancel()
 
 	// We use random port here, hopefully without any gRPC server.
-	cc, err := grpc.DialContext(ctx, "localhost:999", grpc.WithInsecure())
+	cc, err := grpc.DialContext(ctx, "localhost:999", grpc.WithTransportCredentials(insecure.NewCredentials()))
 	require.NoError(t, err)
 
 	pm := newProcessorManager(ctx, &mockProcessor{}, cc, "test")
diff --git a/pkg/scheduler/scheduler_test.go b/pkg/scheduler/scheduler_test.go
index 1fa6c4ca65..bb01124160 100644
--- a/pkg/scheduler/scheduler_test.go
+++ b/pkg/scheduler/scheduler_test.go
@@ -26,6 +26,7 @@ import (
 	"github.com/uber/jaeger-client-go/config"
 	"github.com/weaveworks/common/httpgrpc"
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
 
 	"github.com/grafana/mimir/pkg/frontend/v2/frontendv2pb"
 	"github.com/grafana/mimir/pkg/scheduler/schedulerpb"
@@ -62,7 +63,7 @@ func setupScheduler(t *testing.T, reg prometheus.Registerer) (*Scheduler, schedu
 		_ = l.Close()
 	})
 
-	c, err := grpc.Dial(l.Addr().String(), grpc.WithInsecure())
+	c, err := grpc.Dial(l.Addr().String(), grpc.WithTransportCredentials(insecure.NewCredentials()))
 	require.NoError(t, err)
 
 	t.Cleanup(func() {