diff --git a/api/cache/cache_test.go b/api/cache/cache_test.go
index 388b53d5..4e97535f 100644
--- a/api/cache/cache_test.go
+++ b/api/cache/cache_test.go
@@ -6,7 +6,6 @@ import (
 	"github.com/nspcc-dev/neofs-s3-gw/api/data"
 	"github.com/nspcc-dev/neofs-s3-gw/creds/accessbox"
 	cidtest "github.com/nspcc-dev/neofs-sdk-go/container/id/test"
-	"github.com/nspcc-dev/neofs-sdk-go/object"
 	oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
 	oidtest "github.com/nspcc-dev/neofs-sdk-go/object/id/test"
 	"github.com/stretchr/testify/require"
@@ -72,19 +71,20 @@ func TestObjectCacheType(t *testing.T) {
 	cache := New(DefaultObjectsConfig(logger))
 
 	addr := oidtest.Address()
-	obj := object.New()
-	obj.SetContainerID(addr.Container())
-	obj.SetID(addr.Object())
+	objInfo := &data.ObjectInfo{
+		ID:  addr.Object(),
+		CID: addr.Container(),
+	}
 
-	err := cache.Put(*obj)
+	err := cache.PutObject(objInfo)
 	require.NoError(t, err)
-	val := cache.Get(addr)
-	require.Equal(t, obj, val)
+	val := cache.GetObject(addr)
+	require.Equal(t, objInfo, val)
 	require.Equal(t, 0, observedLog.Len())
 
 	err = cache.cache.Set(addr.EncodeToString(), "tmp")
 	require.NoError(t, err)
-	assertInvalidCacheEntry(t, cache.Get(addr), observedLog)
+	assertInvalidCacheEntry(t, cache.GetObject(addr), observedLog)
 }
 
 func TestObjectsListCacheType(t *testing.T) {
diff --git a/api/cache/objects_test.go b/api/cache/objects_test.go
index 2cbf1271..ab53617d 100644
--- a/api/cache/objects_test.go
+++ b/api/cache/objects_test.go
@@ -4,6 +4,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/nspcc-dev/neofs-s3-gw/api/data"
 	oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
 	objecttest "github.com/nspcc-dev/neofs-sdk-go/object/test"
 	"github.com/stretchr/testify/require"
@@ -27,22 +28,27 @@ func TestCache(t *testing.T) {
 	addr.SetContainer(cnrID)
 	addr.SetObject(objID)
 
+	objInfo := &data.ObjectInfo{
+		ID:  addr.Object(),
+		CID: addr.Container(),
+	}
+
 	t.Run("check get", func(t *testing.T) {
 		cache := New(getTestConfig())
-		err := cache.Put(*obj)
+		err := cache.PutObject(objInfo)
 		require.NoError(t, err)
 
-		actual := cache.Get(addr)
-		require.Equal(t, obj, actual)
+		actual := cache.GetObject(addr)
+		require.Equal(t, objInfo, actual)
 	})
 
 	t.Run("check delete", func(t *testing.T) {
 		cache := New(getTestConfig())
-		err := cache.Put(*obj)
+		err := cache.PutObject(objInfo)
 		require.NoError(t, err)
 
 		cache.Delete(addr)
-		actual := cache.Get(addr)
+		actual := cache.GetObject(addr)
 		require.Nil(t, actual)
 	})
 }
diff --git a/api/handler/head_test.go b/api/handler/head_test.go
index f6beb272..ff6f3e73 100644
--- a/api/handler/head_test.go
+++ b/api/handler/head_test.go
@@ -20,7 +20,7 @@ func TestConditionalHead(t *testing.T) {
 	require.NoError(t, err)
 
 	objName := "object"
-	createTestObject(ctx, t, tc, bktInfo, objName)
+	objInfo := createTestObject(ctx, t, tc, bktInfo, objName)
 
 	w, r := prepareTestRequest(t, bktName, objName, nil)
 	tc.Handler().HeadObjectHandler(w, r)
@@ -41,7 +41,8 @@ func TestConditionalHead(t *testing.T) {
 	assertStatus(t, w, http.StatusPreconditionFailed)
 
 	w, r = prepareTestRequest(t, bktName, objName, nil)
-	r.Header.Set(api.IfUnmodifiedSince, time.Now().UTC().Format(http.TimeFormat))
+	unmodifiedSince := objInfo.Created.Add(time.Minute)
+	r.Header.Set(api.IfUnmodifiedSince, unmodifiedSince.Format(http.TimeFormat))
 	tc.Handler().HeadObjectHandler(w, r)
 	assertStatus(t, w, http.StatusOK)