diff --git a/cmd/deploy.go b/cmd/deploy.go
index 4089b128..f5bd9449 100644
--- a/cmd/deploy.go
+++ b/cmd/deploy.go
@@ -259,7 +259,7 @@ func runDeploy(cmd *cobra.Command, args []string) error {
 	if deploySettings.Roxie.Version != "" {
 		log.Dimf("Using main image tag %s", deploySettings.Roxie.Version)
 	} else {
-		mainImageTag, err := helpers.LookupMainImageTag(ctx)
+		mainImageTag, err := helpers.LookupMainImageTag(ctx, deploySettings.Roxie.ImageRegistry)
 		if err != nil {
 			return fmt.Errorf("looking up main image tag: %w", err)
 		}
diff --git a/internal/helpers/tag.go b/internal/helpers/tag.go
index 2c5e7302..72ac0bb3 100644
--- a/internal/helpers/tag.go
+++ b/internal/helpers/tag.go
@@ -16,7 +16,7 @@ import (
 	"github.com/stackrox/roxie/internal/stackroxversions"
 )
 
-func LookupMainImageTag(ctx context.Context) (string, error) {
+func LookupMainImageTag(ctx context.Context, imageRegistry string) (string, error) {
 	log.Dim("Checking if main image tag is defined in the environment")
 	if tag := os.Getenv("MAIN_IMAGE_TAG"); tag != "" {
 		log.Infof("Using MAIN_IMAGE_TAG from environment: %s", tag)
@@ -38,7 +38,7 @@ func LookupMainImageTag(ctx context.Context) (string, error) {
 	log.Warning("Alternatively, execute roxie from within the stackrox repository, in which case the currently checked out stackrox tag will be used")
 
 	log.Dim("Checking what the latest released version tag is")
-	latestTag, err := LookupLatestTag(ctx)
+	latestTag, err := LookupLatestTag(ctx, imageRegistry)
 	if err != nil {
 		return "", fmt.Errorf("looking up latest release tag: %w", err)
 	}
@@ -48,7 +48,7 @@ func LookupMainImageTag(ctx context.Context) (string, error) {
 }
 
 // Computes the latest image tag for a pullable, released main image.
-func LookupLatestTag(ctx context.Context) (string, error) {
+func LookupLatestTag(ctx context.Context, imageRegistry string) (string, error) {
 	const atMost = 5
 
 	tags, err := stackroxversions.LookupLatestReleaseTagsViaGitHub(ctx, atMost)
@@ -56,9 +56,13 @@ func LookupLatestTag(ctx context.Context) (string, error) {
 		return "", fmt.Errorf("looking up latest release tags: %w", err)
 	}
 
+	if imageRegistry == "" {
+		imageRegistry = constants.DefaultRegistry
+	}
+
 	// Verify we have a pullable main image.
 	for _, tag := range tags {
-		mainImage := fmt.Sprintf("%s/main:%s", constants.DefaultRegistry, tag)
+		mainImage := fmt.Sprintf("%s/main:%s", imageRegistry, tag)
 		if err := ocihelper.VerifyImageExistence(ctx, mainImage); err != nil {
 			var te *transport.Error
 			if errors.As(err, &te) && te.StatusCode == http.StatusNotFound {
diff --git a/internal/helpers/tag_integration_test.go b/internal/helpers/tag_integration_test.go
index 5384d8cf..d2ad40be 100644
--- a/internal/helpers/tag_integration_test.go
+++ b/internal/helpers/tag_integration_test.go
@@ -23,7 +23,7 @@ func TestLookupLatestTag_Integration(t *testing.T) {
 	ctx, cancel := context.WithTimeout(t.Context(), 2*time.Minute)
 	defer cancel()
 
-	tag, err := LookupLatestTag(ctx)
+	tag, err := LookupLatestTag(ctx, "")
 	require.NoError(t, err)
 	require.NotEmpty(t, tag)
 
diff --git a/tests/e2e/e2e_test.go b/tests/e2e/e2e_test.go
index 75c39a9d..38469c31 100644
--- a/tests/e2e/e2e_test.go
+++ b/tests/e2e/e2e_test.go
@@ -50,7 +50,7 @@ func TestMain(m *testing.M) {
 func lookupLatestTag() (string, error) {
 	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
 	defer cancel()
-	tag, err := helpers.LookupLatestTag(ctx)
+	tag, err := helpers.LookupLatestTag(ctx, "")
 	if err != nil {
 		return "", err
 	}