diff --git a/platforms/platforms.go b/platforms/platforms.go
index 18216522d..8f955d036 100644
--- a/platforms/platforms.go
+++ b/platforms/platforms.go
@@ -257,10 +257,5 @@ func Format(platform specs.Platform) string {
 func Normalize(platform specs.Platform) specs.Platform {
 	platform.OS = normalizeOS(platform.OS)
 	platform.Architecture, platform.Variant = normalizeArch(platform.Architecture, platform.Variant)
-
-	// these fields are deprecated, remove them
-	platform.OSFeatures = nil
-	platform.OSVersion = ""
-
 	return platform
 }
diff --git a/platforms/platforms_test.go b/platforms/platforms_test.go
index c070ddae1..fb24eab77 100644
--- a/platforms/platforms_test.go
+++ b/platforms/platforms_test.go
@@ -23,6 +23,7 @@ import (
 	"testing"
 
 	specs "github.com/opencontainers/image-spec/specs-go/v1"
+	"github.com/stretchr/testify/require"
 )
 
 func TestParseSelector(t *testing.T) {
@@ -364,3 +365,7 @@ func TestParseSelectorInvalid(t *testing.T) {
 		})
 	}
 }
+
+func TestNormalize(t *testing.T) {
+	require.Equal(t, DefaultSpec(), Normalize(DefaultSpec()))
+}