diff --git a/postgres-backup-s3/install.sh b/postgres-backup-s3/install.sh
index 9f624aa..f28d7a4 100644
--- a/postgres-backup-s3/install.sh
+++ b/postgres-backup-s3/install.sh
@@ -7,7 +7,7 @@ set -eo pipefail
 apk update
 
 # install pg_dump
-apk add postgresql
+apk add postgresql-client
 
 # install s3 tools
 apk add aws-cli
diff --git a/postgres-restore-s3/install.sh b/postgres-restore-s3/install.sh
index f3b66b3..b416ac3 100644
--- a/postgres-restore-s3/install.sh
+++ b/postgres-restore-s3/install.sh
@@ -6,7 +6,7 @@ set -eo pipefail
 apk update
 
 # install pg_dump
-apk add postgresql
+apk add postgresql-client
 
 # install s3 tools
 apk add aws-cli