--- a/net/minecraft/advancements/Advancement.java
+++ b/net/minecraft/advancements/Advancement.java
@@ -42,7 +_,7 @@
                     AdvancementRewards.CODEC.optionalFieldOf("rewards", AdvancementRewards.EMPTY).forGetter(Advancement::rewards),
                     CRITERIA_CODEC.fieldOf("criteria").forGetter(Advancement::criteria),
                     AdvancementRequirements.CODEC.optionalFieldOf("requirements").forGetter(advancement -> Optional.of(advancement.requirements())),
-                    Codec.BOOL.optionalFieldOf("sends_telemetry_event", Boolean.valueOf(false)).forGetter(Advancement::sendsTelemetryEvent)
+                    Codec.BOOL.optionalFieldOf("sends_telemetry_event", false).forGetter(Advancement::sendsTelemetryEvent)
                 )
                 .apply(instance, (parent, displayInfo, rewards, criteria, requirements, sendsTelemetryEvent) -> {
                     AdvancementRequirements advancementRequirements = requirements.orElseGet(() -> AdvancementRequirements.allOf(criteria.keySet()));