diff --git a/data/Dockerfiles/dovecot/Dockerfile b/data/Dockerfiles/dovecot/Dockerfile
index 38af3c20..1d8e1e5b 100644
--- a/data/Dockerfiles/dovecot/Dockerfile
+++ b/data/Dockerfiles/dovecot/Dockerfile
@@ -2,7 +2,8 @@ FROM debian:bullseye-slim
 LABEL maintainer "Andre Peters <andre.peters@servercow.de>"
 
 ARG DEBIAN_FRONTEND=noninteractive
-ARG DOVECOT=2.3.19.1
+# renovate: datasource=github-tags depName=dovecot/core versioning=semver-coerced
+ARG DOVECOT=2.3.20
 # renovate: datasource=github-releases depName=tianon/gosu versioning=semver-coerced
 ARG GOSU_VERSION=1.16
 ENV LC_ALL C
diff --git a/docker-compose.yml b/docker-compose.yml
index 8e462881..93257cf5 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -216,7 +216,7 @@ services:
             - sogo
 
     dovecot-mailcow:
-      image: mailcow/dovecot:1.21
+      image: mailcow/dovecot:1.22
       depends_on:
         - mysql-mailcow
       dns: