diff --git a/internal/scaffold/changelog_json_test.go b/internal/scaffold/changelog_json_test.go
new file mode 100644
index 0000000..94efb02
--- /dev/null
+++ b/internal/scaffold/changelog_json_test.go
@@ -0,0 +1,24 @@
+package scaffold
+
+import (
+	"encoding/json"
+	"strings"
+	"testing"
+)
+
+func TestChangelogJSONLowercase(t *testing.T) {
+	c := &Config{ID: "io.x.y", Namespace: "y", AppVersion: "0.1.0", Description: "d",
+		Listing: Listing{Changelog: []ChangelogRel{{Version: "0.1.0", Notes: []string{"first"}}}}}
+	b, _ := json.Marshal(BuildMetadata(c))
+	s := string(b)
+	for _, k := range []string{`"version"`, `"notes"`} {
+		if !strings.Contains(s, k) {
+			t.Errorf("metadata changelog missing lowercase key %s", k)
+		}
+	}
+	for _, k := range []string{`"Version"`, `"Notes"`, `"Date"`} {
+		if strings.Contains(s, k) {
+			t.Errorf("metadata changelog has Go-cased key %s", k)
+		}
+	}
+}
diff --git a/internal/scaffold/config.go b/internal/scaffold/config.go
index 7581cf8..07cc0c8 100644
--- a/internal/scaffold/config.go
+++ b/internal/scaffold/config.go
@@ -77,9 +77,9 @@ type Vendor struct {
 
 // ChangelogRel is one release's notes for the store page.
 type ChangelogRel struct {
-	Version string   `yaml:"version"`
-	Date    string   `yaml:"date"`
-	Notes   []string `yaml:"notes"`
+	Version string   `json:"version" yaml:"version"`
+	Date    string   `json:"date,omitempty" yaml:"date"`
+	Notes   []string `json:"notes,omitempty" yaml:"notes"`
 }
 
 // Publisher carries the path to the ed25519 signing key (generated once via