diff --git a/README.md b/README.md
index d6f7f10..a4868ac 100644
--- a/README.md
+++ b/README.md
@@ -88,6 +88,8 @@ Most variables are the same as in the [official postgres image](https://hub.dock
 | POSTGRES_USER_FILE | Alternative to POSTGRES_USER, for usage with docker secrets. |
 | SCHEDULE | [Cron-schedule](http://godoc.org/github.com/robfig/cron#hdr-Predefined_schedules) specifying the interval between postgres backups. Defaults to `@daily`. |
 | TZ | [POSIX TZ variable](https://www.gnu.org/software/libc/manual/html_node/TZ-Variable.html) specifying the timezone used to evaluate SCHEDULE cron (example "Europe/Paris"). |
+| WEBHOOK_EXTRA_URL | Extra arguments for the webhook. |
+| WEBHOOK_URL | URL to be called after a successful backup. |
 
 #### Special Environment Variables
 
@@ -135,3 +137,4 @@ Replace `$BACKUPFILE`, `$VERSION`, `$HOSTNAME`, `$PORT`, `$USERNAME` and `$DBNAM
 ```sh
 docker run --rm --tty --interactive -v $BACKUPFILE:/tmp/backupfile.sql.gz postgres:$VERSION /bin/sh -c "zcat /tmp/backupfile.sql.gz | psql --host=$HOSTNAME --port=$PORT --username=$USERNAME --dbname=$DBNAME -W"
 ```
+
diff --git a/alpine.Dockerfile b/alpine.Dockerfile
index 51bd847..a63c863 100644
--- a/alpine.Dockerfile
+++ b/alpine.Dockerfile
@@ -27,7 +27,9 @@ ENV POSTGRES_DB="**None**" \
     BACKUP_KEEP_WEEKS=4 \
     BACKUP_KEEP_MONTHS=6 \
     BACKUP_KEEP_MINS=1440 \
-    HEALTHCHECK_PORT=8080
+    HEALTHCHECK_PORT=8080 \
+    WEBHOOK_URL="**None**" \
+    WEBHOOK_EXTRA_ARGS=""
 
 COPY backup.sh /backup.sh
 
diff --git a/backup.sh b/backup.sh
index ebd481b..16ad501 100755
--- a/backup.sh
+++ b/backup.sh
@@ -115,3 +115,13 @@ for DB in ${POSTGRES_DBS}; do
 done
 
 echo "SQL backup created successfully"
+
+if [ "${WEBHOOK_URL}" != "**None**" ]; then
+  echo "Execute post-backup webhook call to ${WEBHOOK_URL}"
+  curl --request POST \
+    --url "${WEBHOOK_URL}" \
+    --max-time 10 \
+    --retry 5 \
+    ${WEBHOOK_EXTRA_ARGS}
+  exit 1
+fi
diff --git a/debian.Dockerfile b/debian.Dockerfile
index e443193..1b275a3 100644
--- a/debian.Dockerfile
+++ b/debian.Dockerfile
@@ -42,7 +42,9 @@ ENV POSTGRES_DB="**None**" \
     BACKUP_KEEP_WEEKS=4 \
     BACKUP_KEEP_MONTHS=6 \
     BACKUP_KEEP_MINS=1440 \
-    HEALTHCHECK_PORT=8080
+    HEALTHCHECK_PORT=8080 \
+    WEBHOOK_URL="**None**" \
+    WEBHOOK_EXTRA_ARGS=""
 
 COPY backup.sh /backup.sh