diff --git a/CHANGELOG.md b/CHANGELOG.md
index 09314175..3a8e454d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.21.1](https://github.com/bihealth/annonars/compare/v0.21.0...v0.21.1) (2023-10-12)
+
+
+### Bug Fixes
+
+* use indexmap v2 in serde_with ([#237](https://github.com/bihealth/annonars/issues/237)) ([8c57c35](https://github.com/bihealth/annonars/commit/8c57c35b026d277808cc1659d529f0ff62840b01))
+
 ## [0.21.0](https://github.com/bihealth/annonars/compare/v0.20.0...v0.21.0) (2023-10-02)
 
 
diff --git a/Cargo.lock b/Cargo.lock
index 784320fc..9b7b11cd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -255,7 +255,7 @@ dependencies = [
 
 [[package]]
 name = "annonars"
-version = "0.21.0"
+version = "0.21.1"
 dependencies = [
  "actix-web",
  "anyhow",
diff --git a/Cargo.toml b/Cargo.toml
index bfbdf75d..29ee1784 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "annonars"
-version = "0.21.0"
+version = "0.21.1"
 edition = "2021"
 authors = ["Manuel Holtgrewe <manuel.holtgrewe@bih-charite.de>"]
 description = "Rust template repository"