diff --git a/CHANGES.md b/CHANGES.md
index e61d0875..aa3a1c83 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -2,6 +2,8 @@
 
 ## [Unreleased]
 
+## [4.0.1] - 2025-01-23
+
 ### Changed
 
 - sort conformance classes
@@ -536,7 +538,8 @@ 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/4.0.0..main>
+[Unreleased]: <https://github.com/stac-utils/stac-fastapi/compare/4.0.1..main>
+[4.0.1]: <https://github.com/stac-utils/stac-fastapi/compare/4.0.0..4.0.1>
 [4.0.0]: <https://github.com/stac-utils/stac-fastapi/compare/3.0.5..4.0.0>
 [3.0.5]: <https://github.com/stac-utils/stac-fastapi/compare/3.0.4..3.0.5>
 [3.0.4]: <https://github.com/stac-utils/stac-fastapi/compare/3.0.3..3.0.4>
diff --git a/VERSION b/VERSION
index fcdb2e10..1454f6ed 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.0.0
+4.0.1
diff --git a/pyproject.toml b/pyproject.toml
index cdf8a27d..a9f702ca 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,7 +24,7 @@ section-order = ["future", "standard-library", "third-party", "first-party", "lo
 quote-style = "double"
 
 [tool.bumpversion]
-current_version = "4.0.0"
+current_version = "4.0.1"
 parse = """(?x)
     (?P<major>\\d+)\\.
     (?P<minor>\\d+)\\.
diff --git a/stac_fastapi/api/stac_fastapi/api/version.py b/stac_fastapi/api/stac_fastapi/api/version.py
index a811649a..0199c6ee 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__ = "4.0.0"
+__version__ = "4.0.1"
diff --git a/stac_fastapi/extensions/stac_fastapi/extensions/version.py b/stac_fastapi/extensions/stac_fastapi/extensions/version.py
index a811649a..0199c6ee 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__ = "4.0.0"
+__version__ = "4.0.1"
diff --git a/stac_fastapi/types/stac_fastapi/types/version.py b/stac_fastapi/types/stac_fastapi/types/version.py
index a811649a..0199c6ee 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__ = "4.0.0"
+__version__ = "4.0.1"