diff --git a/fern/products/sdks/overview/java/changelog/2025-09-25.mdx b/fern/products/sdks/overview/java/changelog/2025-09-25.mdx
index a5740e93d..a4632182a 100644
--- a/fern/products/sdks/overview/java/changelog/2025-09-25.mdx
+++ b/fern/products/sdks/overview/java/changelog/2025-09-25.mdx
@@ -1,3 +1,8 @@
+## 3.6.1
+**`(fix):`** Fixed wire tests failing with InvalidDefinitionException for Optional<T> serialization by using
+the configured ObjectMappers.JSON_MAPPER instead of plain ObjectMapper.
+
+
 ## 3.6.0
 **`(feat):`** Add support for PR mode for self-hosted/local sdk generation.