diff --git a/CHANGELOG.md b/CHANGELOG.md
index c5567d0..eae700c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 3.4.1
+
+OTHER:
+
+- update base of Docker image to Alpine 3.13.5 to fix security vulnerabilities
+
 ## 3.4.0 (April 2, 2021)
 
 IMPROVEMENTS:
diff --git a/docker/Dockerfile b/docker/Dockerfile
index da51530..c035cd7 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.13.4
+FROM alpine:3.13.5
 
 EXPOSE 5353 8080