diff --git a/bitnami/postgresql/9.6/debian-10/Dockerfile b/bitnami/postgresql/9.6/debian-10/Dockerfile
index e7eedc7c21bd..7c753a4f6a73 100644
--- a/bitnami/postgresql/9.6/debian-10/Dockerfile
+++ b/bitnami/postgresql/9.6/debian-10/Dockerfile
@@ -22,7 +22,7 @@ COPY rootfs /
 RUN /opt/bitnami/scripts/postgresql/postunpack.sh
 RUN /opt/bitnami/scripts/locales/add-extra-locales.sh
 ENV BITNAMI_APP_NAME="postgresql" \
-    BITNAMI_IMAGE_VERSION="9.6.22-debian-10-r50" \
+    BITNAMI_IMAGE_VERSION="9.6.22-debian-10-r51" \
     LANG="en_US.UTF-8" \
     LANGUAGE="en_US:en" \
     NSS_WRAPPER_LIB="/opt/bitnami/common/lib/libnss_wrapper.so" \
diff --git a/bitnami/postgresql/9.6/debian-10/prebuildfs/opt/bitnami/scripts/libos.sh b/bitnami/postgresql/9.6/debian-10/prebuildfs/opt/bitnami/scripts/libos.sh
index 04be9688d448..a8323db72d93 100644
--- a/bitnami/postgresql/9.6/debian-10/prebuildfs/opt/bitnami/scripts/libos.sh
+++ b/bitnami/postgresql/9.6/debian-10/prebuildfs/opt/bitnami/scripts/libos.sh
@@ -345,8 +345,8 @@ generate_random_string() {
 #   md5 hash - string
 #########################
 generate_md5_hash() {
-  local -r str="${1:?missing input string}"
-  echo -n "$str" | md5sum | awk '{print $1}'
+    local -r str="${1:?missing input string}"
+    echo -n "$str" | md5sum | awk '{print $1}'
 }
 
 ########################
diff --git a/bitnami/postgresql/9.6/debian-10/rootfs/opt/bitnami/scripts/libpostgresql.sh b/bitnami/postgresql/9.6/debian-10/rootfs/opt/bitnami/scripts/libpostgresql.sh
index d600b7d7fe57..b3d04f9369ba 100644
--- a/bitnami/postgresql/9.6/debian-10/rootfs/opt/bitnami/scripts/libpostgresql.sh
+++ b/bitnami/postgresql/9.6/debian-10/rootfs/opt/bitnami/scripts/libpostgresql.sh
@@ -367,7 +367,7 @@ postgresql_create_replication_user() {
 postgresql_configure_replication_parameters() {
     local -r psql_major_version="$(postgresql_get_major_version)"
     info "Configuring replication parameters"
-    postgresql_set_property "wal_level" "hot_standby"
+    postgresql_set_property "wal_level" "$POSTGRESQL_WAL_LEVEL"
     postgresql_set_property "max_wal_size" "400MB"
     postgresql_set_property "max_wal_senders" "16"
     if ((psql_major_version >= 13)); then
diff --git a/bitnami/postgresql/9.6/debian-10/rootfs/opt/bitnami/scripts/postgresql-env.sh b/bitnami/postgresql/9.6/debian-10/rootfs/opt/bitnami/scripts/postgresql-env.sh
index 8654643ef832..c3d3d8c19930 100644
--- a/bitnami/postgresql/9.6/debian-10/rootfs/opt/bitnami/scripts/postgresql-env.sh
+++ b/bitnami/postgresql/9.6/debian-10/rootfs/opt/bitnami/scripts/postgresql-env.sh
@@ -82,6 +82,7 @@ postgresql_env_vars=(
     POSTGRESQL_PGHBA_REMOVE_FILTERS
     POSTGRESQL_USERNAME_CONNECTION_LIMIT
     POSTGRESQL_POSTGRES_CONNECTION_LIMIT
+    POSTGRESQL_WAL_LEVEL
     POSTGRESQL_AUTOCTL_CONF_DIR
     POSTGRESQL_AUTOCTL_MODE
     POSTGRESQL_AUTOCTL_MONITOR_HOST
@@ -307,6 +308,7 @@ POSTGRESQL_USERNAME_CONNECTION_LIMIT="${POSTGRESQL_USERNAME_CONNECTION_LIMIT:-"$
 export POSTGRESQL_USERNAME_CONNECTION_LIMIT="${POSTGRESQL_USERNAME_CONNECTION_LIMIT:-}"
 POSTGRESQL_POSTGRES_CONNECTION_LIMIT="${POSTGRESQL_POSTGRES_CONNECTION_LIMIT:-"${POSTGRES_POSTGRES_CONNECTION_LIMIT:-}"}"
 export POSTGRESQL_POSTGRES_CONNECTION_LIMIT="${POSTGRESQL_POSTGRES_CONNECTION_LIMIT:-}"
+export POSTGRESQL_WAL_LEVEL="${POSTGRESQL_WAL_LEVEL:-replica}"
 
 # pgAutoFailover settings
 export POSTGRESQL_AUTOCTL_VOLUME_DIR="${POSTGRESQL_VOLUME_DIR}/pgautoctl"
diff --git a/bitnami/postgresql/README.md b/bitnami/postgresql/README.md
index 815c5dc9ee6d..7f09d28677d6 100644
--- a/bitnami/postgresql/README.md
+++ b/bitnami/postgresql/README.md
@@ -48,7 +48,7 @@ Learn more about the Bitnami tagging policy and the difference between rolling t
 * [`12`, `12-debian-10`, `12.7.0`, `12.7.0-debian-10-r51` (12/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-postgresql/blob/12.7.0-debian-10-r51/12/debian-10/Dockerfile)
 * [`11`, `11-debian-10`, `11.12.0`, `11.12.0-debian-10-r53`, `latest` (11/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-postgresql/blob/11.12.0-debian-10-r53/11/debian-10/Dockerfile)
 * [`10`, `10-debian-10`, `10.17.0`, `10.17.0-debian-10-r55` (10/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-postgresql/blob/10.17.0-debian-10-r55/10/debian-10/Dockerfile)
-* [`9.6`, `9.6-debian-10`, `9.6.22`, `9.6.22-debian-10-r50` (9.6/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-postgresql/blob/9.6.22-debian-10-r50/9.6/debian-10/Dockerfile)
+* [`9.6`, `9.6-debian-10`, `9.6.22`, `9.6.22-debian-10-r51` (9.6/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-postgresql/blob/9.6.22-debian-10-r51/9.6/debian-10/Dockerfile)
 
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