diff --git a/CHANGELOG.md b/CHANGELOG.md
index d0794819..01420b39 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,15 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ### Added
 
+### Changed
+
+### Fixed
+
+
+## [v6.4.0] - 2025-09-24
+
+### Added
+
 - GET `/collections` collection search free text extension ex. `/collections?q=sentinel`. [#470](https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/pull/470)
 - Added `USE_DATETIME` environment variable to configure datetime search behavior in SFEOS. [#452](https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/pull/452)
 - GET `/collections` collection search sort extension ex. `/collections?sortby=+id`. [#456](https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/pull/456)
@@ -523,7 +532,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Use genexp in execute_search and get_all_collections to return results.
 - Added db_to_stac serializer to item_collection method in core.py.
 
-[Unreleased]: https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/compare/v6.3.0...main
+[Unreleased]: https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/compare/v6.4.0...main
+[v6.4.0]: https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/compare/v6.3.0...v6.4.0
 [v6.3.0]: https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/compare/v6.2.1...v6.3.0
 [v6.2.1]: https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/compare/v6.2.0...v6.2.1
 [v6.2.0]: https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/compare/v6.1.0...v6.2.0
diff --git a/stac_fastapi/core/stac_fastapi/core/version.py b/stac_fastapi/core/stac_fastapi/core/version.py
index 5777e415..111ae424 100644
--- a/stac_fastapi/core/stac_fastapi/core/version.py
+++ b/stac_fastapi/core/stac_fastapi/core/version.py
@@ -1,2 +1,2 @@
 """library version."""
-__version__ = "6.3.0"
+__version__ = "6.4.0"
diff --git a/stac_fastapi/elasticsearch/setup.py b/stac_fastapi/elasticsearch/setup.py
index 6977b4a4..f28b2eaf 100644
--- a/stac_fastapi/elasticsearch/setup.py
+++ b/stac_fastapi/elasticsearch/setup.py
@@ -6,8 +6,8 @@
     desc = f.read()
 
 install_requires = [
-    "stac-fastapi-core==6.3.0",
-    "sfeos-helpers==6.3.0",
+    "stac-fastapi-core==6.4.0",
+    "sfeos-helpers==6.4.0",
     "elasticsearch[async]~=8.18.0",
     "uvicorn~=0.23.0",
     "starlette>=0.35.0,<0.36.0",
diff --git a/stac_fastapi/elasticsearch/stac_fastapi/elasticsearch/version.py b/stac_fastapi/elasticsearch/stac_fastapi/elasticsearch/version.py
index 5777e415..111ae424 100644
--- a/stac_fastapi/elasticsearch/stac_fastapi/elasticsearch/version.py
+++ b/stac_fastapi/elasticsearch/stac_fastapi/elasticsearch/version.py
@@ -1,2 +1,2 @@
 """library version."""
-__version__ = "6.3.0"
+__version__ = "6.4.0"
diff --git a/stac_fastapi/opensearch/setup.py b/stac_fastapi/opensearch/setup.py
index 3253c3aa..7dc18dff 100644
--- a/stac_fastapi/opensearch/setup.py
+++ b/stac_fastapi/opensearch/setup.py
@@ -6,8 +6,8 @@
     desc = f.read()
 
 install_requires = [
-    "stac-fastapi-core==6.3.0",
-    "sfeos-helpers==6.3.0",
+    "stac-fastapi-core==6.4.0",
+    "sfeos-helpers==6.4.0",
     "opensearch-py~=2.8.0",
     "opensearch-py[async]~=2.8.0",
     "uvicorn~=0.23.0",
diff --git a/stac_fastapi/opensearch/stac_fastapi/opensearch/version.py b/stac_fastapi/opensearch/stac_fastapi/opensearch/version.py
index 5777e415..111ae424 100644
--- a/stac_fastapi/opensearch/stac_fastapi/opensearch/version.py
+++ b/stac_fastapi/opensearch/stac_fastapi/opensearch/version.py
@@ -1,2 +1,2 @@
 """library version."""
-__version__ = "6.3.0"
+__version__ = "6.4.0"
diff --git a/stac_fastapi/sfeos_helpers/setup.py b/stac_fastapi/sfeos_helpers/setup.py
index b5f1fbb7..5e2985b3 100644
--- a/stac_fastapi/sfeos_helpers/setup.py
+++ b/stac_fastapi/sfeos_helpers/setup.py
@@ -6,7 +6,7 @@
     desc = f.read()
 
 install_requires = [
-    "stac-fastapi.core==6.3.0",
+    "stac-fastapi.core==6.4.0",
 ]
 
 setup(
diff --git a/stac_fastapi/sfeos_helpers/stac_fastapi/sfeos_helpers/version.py b/stac_fastapi/sfeos_helpers/stac_fastapi/sfeos_helpers/version.py
index 5777e415..111ae424 100644
--- a/stac_fastapi/sfeos_helpers/stac_fastapi/sfeos_helpers/version.py
+++ b/stac_fastapi/sfeos_helpers/stac_fastapi/sfeos_helpers/version.py
@@ -1,2 +1,2 @@
 """library version."""
-__version__ = "6.3.0"
+__version__ = "6.4.0"