diff --git a/CHANGELOG.md b/CHANGELOG.md
index 117351b..f2c5e51 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.21.1](https://github.com/snakemake/snakemake-interface-software-deployment-plugins/compare/v0.21.0...v0.21.1) (2026-09-21)
+
+
+### Bug Fixes
+
+* fix test method name and signature ([fa6425d](https://github.com/snakemake/snakemake-interface-software-deployment-plugins/commit/fa6425de0af32d6868c169fc7e286648c778200b))
+
 ## [0.21.0](https://github.com/snakemake/snakemake-interface-software-deployment-plugins/compare/v0.20.0...v0.21.0) (2026-09-18)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index a14fae0..bd82e3f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ description = "This package provides a stable interface for interactions between
 license = "MIT"
 name = "snakemake-interface-software-deployment-plugins"
 readme = "README.md"
-version = "0.21.0"
+version = "0.21.1"
 requires-python = ">=3.11,<4.0"
 dependencies = [
     "argparse-dataclass >=2.0.0,<3.0",