diff --git a/pkg/interceptors/cel/cel_test.go b/pkg/interceptors/cel/cel_test.go
index 8a57d099a..47960ca08 100644
--- a/pkg/interceptors/cel/cel_test.go
+++ b/pkg/interceptors/cel/cel_test.go
@@ -433,6 +433,13 @@ func TestExpressionEvaluation(t *testing.T) {
 		"jsonArray": []string{
 			"one", "two",
 		},
+		"jsonObjects": []map[string]interface{}{
+			{
+				"testing1": map[string]interface{}{
+					"testing": []string{"test1", "test2"},
+				},
+			},
+		},
 	}
 
 	refParts := strings.Split(testRef, "/")
@@ -589,6 +596,11 @@ func TestExpressionEvaluation(t *testing.T) {
 			expr: "body.jsonArray.marshalJSON()",
 			want: types.String(`["one","two"]`),
 		},
+		{
+			name: "marshal JSON objects to string",
+			expr: "body.jsonObjects.marshalJSON()",
+			want: types.String(`[{"testing1":{"testing":["test1","test2"]}}]`),
+		},
 		{
 			name: "extension base64 decoding",
 			expr: "base64.decode(body.b64value)",
diff --git a/pkg/interceptors/cel/triggers.go b/pkg/interceptors/cel/triggers.go
index 94b734f96..f1d95fd91 100644
--- a/pkg/interceptors/cel/triggers.go
+++ b/pkg/interceptors/cel/triggers.go
@@ -157,7 +157,7 @@ type triggersLib struct {
 
 func (t triggersLib) CompileOptions() []cel.EnvOption {
 	mapStrDyn := cel.MapType(cel.StringType, cel.DynType)
-	listStrDyn := cel.ListType(cel.StringType)
+	listStrDyn := cel.ListType(cel.DynType)
 	return []cel.EnvOption{
 		cel.Function("match",
 			cel.MemberOverload("match_map_string_string", []*cel.Type{mapStrDyn, cel.StringType, cel.StringType}, cel.BoolType,