diff --git a/postgres-restore-s3/Dockerfile b/postgres-restore-s3/Dockerfile
index b6e0c4b..ca0e2ca 100644
--- a/postgres-restore-s3/Dockerfile
+++ b/postgres-restore-s3/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:edge
+FROM alpine:3.2
 MAINTAINER Johannes Schickling "schickling.j@gmail.com"
 
 ADD install.sh install.sh
diff --git a/postgres-restore-s3/install.sh b/postgres-restore-s3/install.sh
index aa2dfe5..be00ab0 100644
--- a/postgres-restore-s3/install.sh
+++ b/postgres-restore-s3/install.sh
@@ -6,7 +6,7 @@ set -e
 apk update
 
 # install pg_dump
-apk add 'postgresql>9.5.0'
+apk add postgresql
 
 # install s3 tools
 apk add python py-pip