diff --git a/Dockerfile b/Dockerfile
index ad33265..fb73f85 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
-FROM alpine:3.15
+FROM alpine:3.18
 
 RUN apk update \
-    && apk --no-cache add dumb-init postgresql-client curl aws-cli
+    && apk --no-cache add dumb-init postgresql15-client curl aws-cli
 
 RUN curl -L https://github.com/odise/go-cron/releases/download/v0.0.7/go-cron-linux.gz | zcat > /usr/local/bin/go-cron && chmod +x /usr/local/bin/go-cron
 
@@ -9,4 +9,4 @@ COPY entrypoint.sh .
 COPY backup.sh .
 
 ENTRYPOINT ["/usr/bin/dumb-init", "--"]
-CMD ["sh", "entrypoint.sh"]
\ No newline at end of file
+CMD ["sh", "entrypoint.sh"]
diff --git a/backup.sh b/backup.sh
index 5f2ab59..ca0f144 100644
--- a/backup.sh
+++ b/backup.sh
@@ -13,7 +13,7 @@ fi
 
 # env vars needed for pg_dump
 export PGPASSWORD=$POSTGRES_PASSWORD
-POSTGRES_HOST_OPTS="-h $POSTGRES_HOST -p $POSTGRES_PORT -U $POSTGRES_USER $POSTGRES_EXTRA_OPTS"
+#POSTGRES_HOST_OPTS="-h $POSTGRES_HOST -p $POSTGRES_PORT -U $POSTGRES_USER $POSTGRES_EXTRA_OPTS"
 
 case "${PG_BACKUP_ACTION:-dump}" in
   dump)
@@ -55,7 +55,7 @@ case "${PG_BACKUP_ACTION:-dump}" in
 
     # TODO: check if database is fresh
     echo "Snapshotting $POSTGRES_DB database"
-    pg_dump -Fc $POSTGRES_HOST_OPTS $POSTGRES_DB > dump.backup
+    pg_dump -U $POSTGRES_USER -h $POSTGRES_HOST -p $POSTGRES_PORT -d $POSTGRES_DB -Fc -b -v -f dump.backup
     aws configure set default.s3.multipart_chunksize 16MB
 
     if [ "${PRIVATE_BACKUP}" == "true" ] || [ "${PRIVATE_BACKUP}" == "1"  ]; then