diff --git a/CHANGELOG.md b/CHANGELOG.md
index 115c1ea66..b32449656 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,12 +1,24 @@
 # Changelog
 
-## [Unreleased](https://github.com/Materials-Consortia/optimade-python-tools/tree/HEAD)
+## [v0.16.4](https://github.com/Materials-Consortia/optimade-python-tools/tree/v0.16.4) (2021-09-20)
 
-[Full Changelog](https://github.com/Materials-Consortia/optimade-python-tools/compare/v0.16.3...HEAD)
+[Full Changelog](https://github.com/Materials-Consortia/optimade-python-tools/compare/v0.16.3...v0.16.4)
 
 **Closed issues:**
 
-- Missing guide for how to set up an implementation from existing database [\#176](https://github.com/Materials-Consortia/optimade-python-tools/issues/176)
+- Code check fails because there is no valid version of jsmin [\#938](https://github.com/Materials-Consortia/optimade-python-tools/issues/938)
+- Be properly compliant with the new pip resolver [\#625](https://github.com/Materials-Consortia/optimade-python-tools/issues/625)
+
+**Merged pull requests:**
+
+- Bump providers from `357c27b` to `fb05359` [\#945](https://github.com/Materials-Consortia/optimade-python-tools/pull/945) ([dependabot[bot]](https://github.com/apps/dependabot))
+- Bump providers from `368f9f6` to `357c27b` [\#944](https://github.com/Materials-Consortia/optimade-python-tools/pull/944) ([dependabot[bot]](https://github.com/apps/dependabot))
+- Bump providers from `91b51bd` to `368f9f6` [\#942](https://github.com/Materials-Consortia/optimade-python-tools/pull/942) ([dependabot[bot]](https://github.com/apps/dependabot))
+- remove the dependency on mkdocs-minify because of issue \#938. [\#941](https://github.com/Materials-Consortia/optimade-python-tools/pull/941) ([JPBergsma](https://github.com/JPBergsma))
+- Corrected command to call uvicorn server [\#937](https://github.com/Materials-Consortia/optimade-python-tools/pull/937) ([JPBergsma](https://github.com/JPBergsma))
+- Use proper pip dependency resolver in publish workflow [\#935](https://github.com/Materials-Consortia/optimade-python-tools/pull/935) ([ml-evs](https://github.com/ml-evs))
+- Dependency updates for v0.16.4 [\#901](https://github.com/Materials-Consortia/optimade-python-tools/pull/901) ([ml-evs](https://github.com/ml-evs))
+- Add JOSS paper [\#804](https://github.com/Materials-Consortia/optimade-python-tools/pull/804) ([ml-evs](https://github.com/ml-evs))
 
 ## [v0.16.3](https://github.com/Materials-Consortia/optimade-python-tools/tree/v0.16.3) (2021-09-02)
 
@@ -27,6 +39,7 @@
 - Docs don't introduce the idea of "models" [\#910](https://github.com/Materials-Consortia/optimade-python-tools/issues/910)
 - Docs don't mention anything about where to go for support [\#909](https://github.com/Materials-Consortia/optimade-python-tools/issues/909)
 - `run.sh` does not appear to be available from the pip installation [\#904](https://github.com/Materials-Consortia/optimade-python-tools/issues/904)
+- Missing guide for how to set up an implementation from existing database [\#176](https://github.com/Materials-Consortia/optimade-python-tools/issues/176)
 
 **Merged pull requests:**
 
diff --git a/docs/static/default_config.json b/docs/static/default_config.json
index 3a648a04c..843addf5a 100644
--- a/docs/static/default_config.json
+++ b/docs/static/default_config.json
@@ -13,7 +13,7 @@
     "base_url": null,
     "implementation": {
         "name": "OPTIMADE Python Tools",
-        "version": "0.16.3",
+        "version": "0.16.4",
         "source_url": "https://github.com/Materials-Consortia/optimade-python-tools",
         "maintainer": {"email": "dev@optimade.org"}
     },
diff --git a/openapi/index_openapi.json b/openapi/index_openapi.json
index ee68db9a3..62593909b 100644
--- a/openapi/index_openapi.json
+++ b/openapi/index_openapi.json
@@ -2,7 +2,7 @@
   "openapi": "3.0.2",
   "info": {
     "title": "OPTIMADE API - Index meta-database",
-    "description": "The [Open Databases Integration for Materials Design (OPTIMADE) consortium](https://www.optimade.org/) aims to make materials databases interoperational by developing a common REST API.\nThis is the \"special\" index meta-database.\n\nThis specification is generated using [`optimade-python-tools`](https://github.com/Materials-Consortia/optimade-python-tools/tree/v0.16.3) v0.16.3.",
+    "description": "The [Open Databases Integration for Materials Design (OPTIMADE) consortium](https://www.optimade.org/) aims to make materials databases interoperational by developing a common REST API.\nThis is the \"special\" index meta-database.\n\nThis specification is generated using [`optimade-python-tools`](https://github.com/Materials-Consortia/optimade-python-tools/tree/v0.16.4) v0.16.4.",
     "version": "1.1.0"
   },
   "paths": {
diff --git a/openapi/openapi.json b/openapi/openapi.json
index 30ab2e582..ea7cae0a0 100644
--- a/openapi/openapi.json
+++ b/openapi/openapi.json
@@ -2,7 +2,7 @@
   "openapi": "3.0.2",
   "info": {
     "title": "OPTIMADE API",
-    "description": "The [Open Databases Integration for Materials Design (OPTIMADE) consortium](https://www.optimade.org/) aims to make materials databases interoperational by developing a common REST API.\n\nThis specification is generated using [`optimade-python-tools`](https://github.com/Materials-Consortia/optimade-python-tools/tree/v0.16.3) v0.16.3.",
+    "description": "The [Open Databases Integration for Materials Design (OPTIMADE) consortium](https://www.optimade.org/) aims to make materials databases interoperational by developing a common REST API.\n\nThis specification is generated using [`optimade-python-tools`](https://github.com/Materials-Consortia/optimade-python-tools/tree/v0.16.4) v0.16.4.",
     "version": "1.1.0"
   },
   "paths": {
diff --git a/optimade/__init__.py b/optimade/__init__.py
index ecd12b5f7..42eddee14 100644
--- a/optimade/__init__.py
+++ b/optimade/__init__.py
@@ -1,2 +1,2 @@
-__version__ = "0.16.3"
+__version__ = "0.16.4"
 __api_version__ = "1.1.0"