diff --git a/cli/internal/cmd/configfetchmeasurements_test.go b/cli/internal/cmd/configfetchmeasurements_test.go
index 12fd761ae..46b0cfc96 100644
--- a/cli/internal/cmd/configfetchmeasurements_test.go
+++ b/cli/internal/cmd/configfetchmeasurements_test.go
@@ -8,6 +8,7 @@ package cmd
 
 import (
 	"context"
+	"fmt"
 	"net/http"
 	"net/url"
 	"testing"
@@ -204,7 +205,7 @@ func (f stubVerifyFetcher) FetchAndVerifyMeasurements(_ context.Context, _ strin
 
 type stubAttestationFetcher struct{}
 
-func (f stubAttestationFetcher) FetchLatestVersion(_ context.Context, _ variant.Variant) (attestationconfigapi.Entry, error) {
+func (f stubAttestationFetcher) FetchLatestVersion(_ context.Context, _ fmt.Stringer) (attestationconfigapi.Entry, error) {
 	return attestationconfigapi.Entry{
 		SEVSNPVersion: testCfg,
 	}, nil
diff --git a/cli/internal/cmd/iamupgradeapply_test.go b/cli/internal/cmd/iamupgradeapply_test.go
index 786c24857..8a648bd00 100644
--- a/cli/internal/cmd/iamupgradeapply_test.go
+++ b/cli/internal/cmd/iamupgradeapply_test.go
@@ -7,6 +7,7 @@ package cmd
 
 import (
 	"context"
+	"fmt"
 	"io"
 	"path/filepath"
 	"strings"
@@ -14,7 +15,6 @@ import (
 
 	"github.com/edgelesssys/constellation/v2/cli/internal/terraform"
 	"github.com/edgelesssys/constellation/v2/internal/api/attestationconfigapi"
-	"github.com/edgelesssys/constellation/v2/internal/attestation/variant"
 	"github.com/edgelesssys/constellation/v2/internal/cloud/cloudprovider"
 	"github.com/edgelesssys/constellation/v2/internal/config"
 	"github.com/edgelesssys/constellation/v2/internal/constants"
@@ -171,6 +171,6 @@ type stubConfigFetcher struct {
 	fetchLatestErr error
 }
 
-func (s *stubConfigFetcher) FetchLatestVersion(context.Context, variant.Variant) (attestationconfigapi.Entry, error) {
+func (s *stubConfigFetcher) FetchLatestVersion(context.Context, fmt.Stringer) (attestationconfigapi.Entry, error) {
 	return attestationconfigapi.Entry{}, s.fetchLatestErr
 }
diff --git a/internal/api/attestationconfigapi/fetcher.go b/internal/api/attestationconfigapi/fetcher.go
index ca30bb554..362c41bf5 100644
--- a/internal/api/attestationconfigapi/fetcher.go
+++ b/internal/api/attestationconfigapi/fetcher.go
@@ -20,7 +20,7 @@ const cosignPublicKey = constants.CosignPublicKeyReleases
 
 // Fetcher fetches config API resources without authentication.
 type Fetcher interface {
-	FetchLatestVersion(ctx context.Context, attestation variant.Variant) (Entry, error)
+	FetchLatestVersion(ctx context.Context, attestation fmt.Stringer) (Entry, error)
 }
 
 // fetcher fetches AttestationCfg API resources without authentication.
@@ -60,7 +60,7 @@ func newFetcherWithClientAndVerifier(client apifetcher.HTTPClient, cosignVerifie
 }
 
 // FetchLatestVersion returns the latest versions of the given type.
-func (f *fetcher) FetchLatestVersion(ctx context.Context, variant variant.Variant) (Entry, error) {
+func (f *fetcher) FetchLatestVersion(ctx context.Context, variant fmt.Stringer) (Entry, error) {
 	list, err := f.fetchVersionList(ctx, variant)
 	if err != nil {
 		return Entry{}, err
@@ -71,23 +71,31 @@ func (f *fetcher) FetchLatestVersion(ctx context.Context, variant variant.Varian
 }
 
 // fetchVersionList fetches the version list information from the config API.
-func (f *fetcher) fetchVersionList(ctx context.Context, variant variant.Variant) (List, error) {
-	fetchedList, err := apifetcher.FetchAndVerify(ctx, f.HTTPClient, f.cdnURL, List{Variant: variant}, f.verifier)
+func (f *fetcher) fetchVersionList(ctx context.Context, attestationVariant fmt.Stringer) (List, error) {
+	parsedVariant, err := variant.FromString(attestationVariant.String())
+	if err != nil {
+		return List{}, fmt.Errorf("parsing variant: %w", err)
+	}
+	fetchedList, err := apifetcher.FetchAndVerify(ctx, f.HTTPClient, f.cdnURL, List{Variant: parsedVariant}, f.verifier)
 	if err != nil {
 		return List{}, fmt.Errorf("fetching version list: %w", err)
 	}
 
 	// Set the attestation variant of the list as it is not part of the marshalled JSON retrieved by Fetch
-	fetchedList.Variant = variant
+	fetchedList.Variant = parsedVariant
 
 	return fetchedList, nil
 }
 
 // fetchVersion fetches the version information from the config API.
-func (f *fetcher) fetchVersion(ctx context.Context, version string, variant variant.Variant) (Entry, error) {
+func (f *fetcher) fetchVersion(ctx context.Context, version string, attestationVariant fmt.Stringer) (Entry, error) {
+	parsedVariant, err := variant.FromString(attestationVariant.String())
+	if err != nil {
+		return Entry{}, fmt.Errorf("parsing variant: %w", err)
+	}
 	obj := Entry{
 		Version: version,
-		Variant: variant,
+		Variant: parsedVariant,
 	}
 	fetchedVersion, err := apifetcher.FetchAndVerify(ctx, f.HTTPClient, f.cdnURL, obj, f.verifier)
 	if err != nil {
@@ -95,7 +103,7 @@ func (f *fetcher) fetchVersion(ctx context.Context, version string, variant vari
 	}
 
 	// Set the attestation variant of the list as it is not part of the marshalled JSON retrieved by FetchAndVerify
-	fetchedVersion.Variant = variant
+	fetchedVersion.Variant = parsedVariant
 
 	return fetchedVersion, nil
 }
diff --git a/internal/config/config_test.go b/internal/config/config_test.go
index c18e5d835..a1a5499d8 100644
--- a/internal/config/config_test.go
+++ b/internal/config/config_test.go
@@ -9,6 +9,7 @@ package config
 import (
 	"context"
 	"errors"
+	"fmt"
 	"reflect"
 	"testing"
 
@@ -1051,7 +1052,7 @@ func getConfigAsMap(conf *Config, t *testing.T) (res configMap) {
 
 type stubAttestationFetcher struct{}
 
-func (f stubAttestationFetcher) FetchLatestVersion(_ context.Context, _ variant.Variant) (attestationconfigapi.Entry, error) {
+func (f stubAttestationFetcher) FetchLatestVersion(_ context.Context, _ fmt.Stringer) (attestationconfigapi.Entry, error) {
 	return attestationconfigapi.Entry{
 		SEVSNPVersion: testCfg,
 	}, nil