diff --git a/postgres-backup-s3/Dockerfile b/postgres-backup-s3/Dockerfile
index 747f90c..4cb8060 100644
--- a/postgres-backup-s3/Dockerfile
+++ b/postgres-backup-s3/Dockerfile
@@ -1,4 +1,4 @@
-FROM webdevops/go-crond:master-alpine
+FROM webdevops/go-crond:main-alpine
 LABEL maintainer="Johannes Schickling <schickling.j@gmail.com>"
 
 ADD install.sh install.sh
diff --git a/postgres-backup-s3/install.sh b/postgres-backup-s3/install.sh
index 633294e..987568c 100644
--- a/postgres-backup-s3/install.sh
+++ b/postgres-backup-s3/install.sh
@@ -5,7 +5,7 @@ set -eo pipefail
 
 apk update
 apk add openssl aws-cli 
-apk add postgresql-client --repository=https://dl-cdn.alpinelinux.org/alpine/v3.19/main
+apk add postgresql-client
 
 # cleanup
 rm -rf /var/cache/apk/*