diff --git a/data/Dockerfiles/dovecot/Dockerfile b/data/Dockerfiles/dovecot/Dockerfile
index f1152c8a1..3065223c1 100644
--- a/data/Dockerfiles/dovecot/Dockerfile
+++ b/data/Dockerfiles/dovecot/Dockerfile
@@ -3,7 +3,7 @@ FROM alpine:3.21
 LABEL maintainer="The Infrastructure Company GmbH <info@servercow.de>"
 
 # renovate: datasource=github-releases depName=tianon/gosu versioning=semver-coerced extractVersion=^(?<version>.*)$
-ARG GOSU_VERSION=1.19
+ARG GOSU_VERSION=1.20
 
 ENV LANG=C.UTF-8
 ENV LC_ALL=C.UTF-8
diff --git a/data/Dockerfiles/sogo/Dockerfile b/data/Dockerfiles/sogo/Dockerfile
index 997831303..d55a98901 100644
--- a/data/Dockerfiles/sogo/Dockerfile
+++ b/data/Dockerfiles/sogo/Dockerfile
@@ -17,7 +17,7 @@ ARG SOPE_VERSION=SOPE-5.12.12
 # Security patches to apply (space-separated commit hashes)
 ARG SOGO_SECURITY_PATCHES=""
 # renovate: datasource=github-releases depName=tianon/gosu versioning=semver-coerced extractVersion=^(?<version>.*)$
-ARG GOSU_VERSION=1.19
+ARG GOSU_VERSION=1.20
 ENV LC_ALL=C
 
 # Install dependencies, build SOPE and SOGo, then clean up (all in one layer to minimize image size)