diff --git a/CHANGES.md b/CHANGES.md
index be759c9e..d87de84b 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -2,6 +2,8 @@
 
 ## [Unreleased]
 
+## [6.0.0] - 2025-06-19
+
 ### Changed
 
 - move `transaction` clients and models to `stac_fastapi.extension` sub-module
@@ -651,7 +653,8 @@ Full changelog: https://stac-utils.github.io/stac-fastapi/migrations/v3.0.0/#cha
 
 * First PyPi release!
 
-[Unreleased]: <https://github.com/stac-utils/stac-fastapi/compare/5.2.1..main>
+[Unreleased]: <https://github.com/stac-utils/stac-fastapi/compare/6.0.0..main>
+[6.0.0]: <https://github.com/stac-utils/stac-fastapi/compare/5.2.1..6.0.0>
 [5.2.1]: <https://github.com/stac-utils/stac-fastapi/compare/5.2.0..5.2.1>
 [5.2.0]: <https://github.com/stac-utils/stac-fastapi/compare/5.1.1..5.2.0>
 [5.1.1]: <https://github.com/stac-utils/stac-fastapi/compare/5.1.0..5.1.1>
diff --git a/VERSION b/VERSION
index 26d99a28..09b254e9 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-5.2.1
+6.0.0
diff --git a/pyproject.toml b/pyproject.toml
index d6d50b81..d69a1db1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,7 +30,7 @@ explicit_package_bases = true
 exclude = ["tests", ".venv"]
 
 [tool.bumpversion]
-current_version = "5.2.1"
+current_version = "6.0.0"
 parse = """(?x)
     (?P<major>\\d+)\\.
     (?P<minor>\\d+)\\.
diff --git a/stac_fastapi/api/setup.py b/stac_fastapi/api/setup.py
index da582a44..980a1417 100644
--- a/stac_fastapi/api/setup.py
+++ b/stac_fastapi/api/setup.py
@@ -7,7 +7,7 @@
 
 install_requires = [
     "brotli_asgi",
-    "stac-fastapi.types~=5.2",
+    "stac-fastapi.types~=6.0",
 ]
 
 extra_reqs = {
diff --git a/stac_fastapi/api/stac_fastapi/api/version.py b/stac_fastapi/api/stac_fastapi/api/version.py
index 406bb0f3..73e99023 100644
--- a/stac_fastapi/api/stac_fastapi/api/version.py
+++ b/stac_fastapi/api/stac_fastapi/api/version.py
@@ -1,3 +1,3 @@
 """Library version."""
 
-__version__ = "5.2.1"
+__version__ = "6.0.0"
diff --git a/stac_fastapi/extensions/setup.py b/stac_fastapi/extensions/setup.py
index be50afa1..e094ccd8 100644
--- a/stac_fastapi/extensions/setup.py
+++ b/stac_fastapi/extensions/setup.py
@@ -7,8 +7,8 @@
     desc = f.read()
 
 install_requires = [
-    "stac-fastapi.types~=5.2",
-    "stac-fastapi.api~=5.2",
+    "stac-fastapi.types~=6.0",
+    "stac-fastapi.api~=6.0",
 ]
 
 extra_reqs = {
diff --git a/stac_fastapi/extensions/stac_fastapi/extensions/version.py b/stac_fastapi/extensions/stac_fastapi/extensions/version.py
index 406bb0f3..73e99023 100644
--- a/stac_fastapi/extensions/stac_fastapi/extensions/version.py
+++ b/stac_fastapi/extensions/stac_fastapi/extensions/version.py
@@ -1,3 +1,3 @@
 """Library version."""
 
-__version__ = "5.2.1"
+__version__ = "6.0.0"
diff --git a/stac_fastapi/types/stac_fastapi/types/version.py b/stac_fastapi/types/stac_fastapi/types/version.py
index 406bb0f3..73e99023 100644
--- a/stac_fastapi/types/stac_fastapi/types/version.py
+++ b/stac_fastapi/types/stac_fastapi/types/version.py
@@ -1,3 +1,3 @@
 """Library version."""
 
-__version__ = "5.2.1"
+__version__ = "6.0.0"