diff --git a/config/config.go b/config/config.go
index 54aef8d12f..62d38f6ee2 100644
--- a/config/config.go
+++ b/config/config.go
@@ -6,6 +6,8 @@ import (
 	"strconv"
 	"strings"
 
+	"github.com/aquasecurity/trivy/pkg/db"
+	"github.com/aquasecurity/trivy/pkg/javadb"
 	"github.com/asaskevich/govalidator"
 	"golang.org/x/xerrors"
 
@@ -87,6 +89,11 @@ type ReportOpts struct {
 	TrivyOpts
 }
 
+var (
+	DefaultTrivyDBRepositories     = []string{db.DefaultGCRRepository, db.DefaultGHCRRepository}
+	DefaultTrivyJavaDBRepositories = []string{javadb.DefaultGCRRepository, javadb.DefaultGHCRRepository}
+)
+
 // TrivyOpts is options for trivy DBs
 type TrivyOpts struct {
 	TrivyCacheDBDir         string   `json:"trivyCacheDBDir,omitempty"`
diff --git a/detector/javadb/javadb.go b/detector/javadb/javadb.go
index 6c96650f89..0586b378dd 100644
--- a/detector/javadb/javadb.go
+++ b/detector/javadb/javadb.go
@@ -49,6 +49,9 @@ func UpdateJavaDB(trivyOpts config.TrivyOpts, noProgress bool) error {
 	}
 
 	// Download DB
+	if len(trivyOpts.TrivyJavaDBRepositories) == 0 {
+		trivyOpts.TrivyJavaDBRepositories = config.DefaultTrivyJavaDBRepositories
+	}
 	logging.Log.Infof("Trivy Java DB Repository: %s", strings.Join(trivyOpts.TrivyJavaDBRepositories, ", "))
 	logging.Log.Info("Downloading Trivy Java DB...")
 
diff --git a/detector/library.go b/detector/library.go
index 64ef7e18e8..06323c56b7 100644
--- a/detector/library.go
+++ b/detector/library.go
@@ -96,6 +96,9 @@ func DetectLibsCves(r *models.ScanResult, trivyOpts config.TrivyOpts, logOpts lo
 }
 
 func downloadDB(appVersion string, trivyOpts config.TrivyOpts, noProgress, skipUpdate bool) error {
+	if len(trivyOpts.TrivyDBRepositories) == 0 {
+		trivyOpts.TrivyDBRepositories = config.DefaultTrivyDBRepositories
+	}
 	refs := make([]name.Reference, 0, len(trivyOpts.TrivyDBRepositories))
 	for _, repo := range trivyOpts.TrivyDBRepositories {
 		ref, err := func() (name.Reference, error) {
diff --git a/subcmds/report.go b/subcmds/report.go
index 6f025f6e99..49362e2b78 100644
--- a/subcmds/report.go
+++ b/subcmds/report.go
@@ -5,13 +5,10 @@ package subcmds
 import (
 	"context"
 	"flag"
-	"fmt"
 	"os"
 	"path/filepath"
 
 	"github.com/aquasecurity/trivy/pkg/cache"
-	trivydb "github.com/aquasecurity/trivy/pkg/db"
-	trivyjavadb "github.com/aquasecurity/trivy/pkg/javadb"
 	"github.com/google/subcommands"
 	"github.com/k0kubun/pp"
 	"golang.org/x/xerrors"
@@ -183,13 +180,13 @@ func (p *ReportCmd) SetFlags(f *flag.FlagSet) {
 	f.StringVar(&config.Conf.TrivyCacheDBDir, "trivy-cachedb-dir",
 		cache.DefaultDir(), "/path/to/dir")
 
-	config.Conf.TrivyOpts.TrivyDBRepositories = []string{trivydb.DefaultGHCRRepository}
+	config.Conf.TrivyOpts.TrivyDBRepositories = config.DefaultTrivyDBRepositories
 	dbRepos := stringArrayFlag{target: &config.Conf.TrivyOpts.TrivyDBRepositories}
-	f.Var(&dbRepos, "trivy-db-repository", fmt.Sprintf("Trivy DB Repository in a comma-separated list (default %s)", trivydb.DefaultGHCRRepository))
+	f.Var(&dbRepos, "trivy-db-repository", "Trivy DB Repository in a comma-separated list")
 
-	config.Conf.TrivyOpts.TrivyJavaDBRepositories = []string{trivyjavadb.DefaultGHCRRepository}
+	config.Conf.TrivyOpts.TrivyJavaDBRepositories = config.DefaultTrivyJavaDBRepositories
 	javaDBRepos := stringArrayFlag{target: &config.Conf.TrivyOpts.TrivyJavaDBRepositories}
-	f.Var(&javaDBRepos, "trivy-java-db-repository", fmt.Sprintf("Trivy Java DB Repository in a comma-separated list (default %s)", trivyjavadb.DefaultGHCRRepository))
+	f.Var(&javaDBRepos, "trivy-java-db-repository", "Trivy Java DB Repository in a comma-separated list")
 
 	f.BoolVar(&config.Conf.TrivySkipJavaDBUpdate, "trivy-skip-java-db-update", false, "Skip Trivy Java DB Update")
 }
diff --git a/subcmds/report_windows.go b/subcmds/report_windows.go
index e3325e65b5..0f3fda1332 100644
--- a/subcmds/report_windows.go
+++ b/subcmds/report_windows.go
@@ -5,13 +5,10 @@ package subcmds
 import (
 	"context"
 	"flag"
-	"fmt"
 	"os"
 	"path/filepath"
 
 	"github.com/aquasecurity/trivy/pkg/cache"
-	trivydb "github.com/aquasecurity/trivy/pkg/db"
-	trivyjavadb "github.com/aquasecurity/trivy/pkg/javadb"
 	"github.com/google/subcommands"
 	"github.com/k0kubun/pp"
 
@@ -180,13 +177,13 @@ func (p *ReportCmd) SetFlags(f *flag.FlagSet) {
 	f.StringVar(&config.Conf.TrivyCacheDBDir, "trivy-cachedb-dir",
 		cache.DefaultDir(), "/path/to/dir")
 
-	config.Conf.TrivyOpts.TrivyDBRepositories = []string{trivydb.DefaultGHCRRepository}
+	config.Conf.TrivyOpts.TrivyDBRepositories = config.DefaultTrivyDBRepositories
 	dbRepos := stringArrayFlag{target: &config.Conf.TrivyOpts.TrivyDBRepositories}
-	f.Var(&dbRepos, "trivy-db-repository", fmt.Sprintf("Trivy DB Repository in a comma-separated list (default %s)", trivydb.DefaultGHCRRepository))
+	f.Var(&dbRepos, "trivy-db-repository", "Trivy DB Repository in a comma-separated list")
 
-	config.Conf.TrivyOpts.TrivyJavaDBRepositories = []string{trivyjavadb.DefaultGHCRRepository}
+	config.Conf.TrivyOpts.TrivyJavaDBRepositories = config.DefaultTrivyJavaDBRepositories
 	javaDBRepos := stringArrayFlag{target: &config.Conf.TrivyOpts.TrivyJavaDBRepositories}
-	f.Var(&javaDBRepos, "trivy-java-db-repository", fmt.Sprintf("Trivy Java DB Repository in a comma-separated list (default %s)", trivyjavadb.DefaultGHCRRepository))
+	f.Var(&javaDBRepos, "trivy-java-db-repository", "Trivy Java DB Repository in a comma-separated list")
 
 	f.BoolVar(&config.Conf.TrivySkipJavaDBUpdate, "trivy-skip-java-db-update", false, "Skip Trivy Java DB Update")
 }
diff --git a/subcmds/tui.go b/subcmds/tui.go
index 4c3d64cd2d..d255e71980 100644
--- a/subcmds/tui.go
+++ b/subcmds/tui.go
@@ -6,13 +6,10 @@ package subcmds
 import (
 	"context"
 	"flag"
-	"fmt"
 	"os"
 	"path/filepath"
 
 	"github.com/aquasecurity/trivy/pkg/cache"
-	trivydb "github.com/aquasecurity/trivy/pkg/db"
-	trivyjavadb "github.com/aquasecurity/trivy/pkg/javadb"
 	"github.com/google/subcommands"
 
 	"github.com/future-architect/vuls/config"
@@ -112,13 +109,13 @@ func (p *TuiCmd) SetFlags(f *flag.FlagSet) {
 	f.StringVar(&config.Conf.TrivyCacheDBDir, "trivy-cachedb-dir",
 		cache.DefaultDir(), "/path/to/dir")
 
-	config.Conf.TrivyOpts.TrivyDBRepositories = []string{trivydb.DefaultGHCRRepository}
+	config.Conf.TrivyOpts.TrivyDBRepositories = config.DefaultTrivyDBRepositories
 	dbRepos := stringArrayFlag{target: &config.Conf.TrivyOpts.TrivyDBRepositories}
-	f.Var(&dbRepos, "trivy-db-repository", fmt.Sprintf("Trivy DB Repository in a comma-separated list (default %s)", trivydb.DefaultGHCRRepository))
+	f.Var(&dbRepos, "trivy-db-repository", "Trivy DB Repository in a comma-separated list")
 
-	config.Conf.TrivyOpts.TrivyJavaDBRepositories = []string{trivyjavadb.DefaultGHCRRepository}
+	config.Conf.TrivyOpts.TrivyJavaDBRepositories = config.DefaultTrivyJavaDBRepositories
 	javaDBRepos := stringArrayFlag{target: &config.Conf.TrivyOpts.TrivyJavaDBRepositories}
-	f.Var(&javaDBRepos, "trivy-java-db-repository", fmt.Sprintf("Trivy Java DB Repository in a comma-separated list (default %s)", trivyjavadb.DefaultGHCRRepository))
+	f.Var(&javaDBRepos, "trivy-java-db-repository", "Trivy Java DB Repository in a comma-separated list")
 
 	f.BoolVar(&config.Conf.TrivySkipJavaDBUpdate, "trivy-skip-java-db-update", false, "Skip Trivy Java DB Update")
 }