diff --git a/CHANGELOG.md b/CHANGELOG.md
index ee3fda3..2018d00 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.15.21] - 2022-07-19
+### Update
+- Update dependency docker.io/library/alpine to v3.16.1
+
 ## [0.15.20] - 2022-07-13
 ### Update
 - Update dependency docker.io/library/golang to v1.18.4
diff --git a/Dockerfile b/Dockerfile
index 5ddf85e..e86f595 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,7 +6,7 @@ COPY . ./
 
 RUN make build
 
-FROM docker.io/library/alpine:3.16.0
+FROM docker.io/library/alpine:3.16.1
 
 ARG VERSION
 ARG REVISION