diff --git a/migrations/01_init.sql b/migrations/01_init.sql
index 6f1280d..e349a26 100644
--- a/migrations/01_init.sql
+++ b/migrations/01_init.sql
@@ -5,6 +5,13 @@ CREATE TABLE IF NOT EXISTS global_action (
        next_run INTEGER DEFAULT 0 NOT NULL
 );
 
+CREATE TABLE IF NOT EXISTS jail_action (
+       name TEXT NOT NULL,
+       jail_name TEXT NOT NULL,
+       next_run INTEGER DEFAULT 0 NOT NULL,
+       PRIMARY KEY (name, jail_name)
+);
+
 CREATE TABLE IF NOT EXISTS local_action (
        name TEXT NOT NULL,
        jail_name TEXT NOT NULL,
diff --git a/src/action/jail.rs b/src/action/jail.rs
new file mode 100644
index 0000000..dc9db69
--- /dev/null
+++ b/src/action/jail.rs
@@ -0,0 +1,40 @@
+use std::process::Command;
+use std::time::Duration;
+use std::time::SystemTime;
+
+use crate::action::ACTION_BUILD;
+use crate::db::DbHandle;
+use crate::db::DbJailAction;
+
+pub(crate) const ACTION_UPDATE_JAIL: &str = "update_jail";
+const ACTION_UPDATE_JAIL_INTERVAL: u64 = 604800;
+
+pub(crate) fn update_jail(
+    db_conn: &mut DbHandle,
+    action: &DbJailAction,
+) -> Result<(), Box<dyn std::error::Error>> {
+    println!("Updating jail {}.", action.jail_name.as_str());
+    Command::new("poudriere")
+        .arg("jail")
+        .arg("-j")
+        .arg(action.jail_name.as_str())
+        .arg("-u")
+        .status()?
+        .exit_ok()?;
+    let next_run = (SystemTime::now() + Duration::from_secs(ACTION_UPDATE_JAIL_INTERVAL))
+        .duration_since(SystemTime::UNIX_EPOCH)?
+        .as_secs();
+
+    let tx = db_conn.conn.transaction()?;
+    tx.execute(
+        "UPDATE jail_action SET next_run=$1 WHERE name=$2 AND jail_name=$3",
+        (next_run, ACTION_UPDATE_JAIL, action.jail_name.as_str()),
+    )?;
+    // Since we just updated the jail, force a build ASAP since it may need to rebuild everything.
+    tx.execute(
+        "UPDATE local_action SET next_run=0 WHERE name=$1 AND jail_name=$2",
+        (ACTION_BUILD, action.jail_name.as_str()),
+    )?;
+    tx.commit()?;
+    Ok(())
+}
diff --git a/src/action/mod.rs b/src/action/mod.rs
index 9c831b1..e6c25a3 100644
--- a/src/action/mod.rs
+++ b/src/action/mod.rs
@@ -1,10 +1,13 @@
 mod build;
 mod cleanup;
+mod jail;
 mod ports_tree;
 
 pub(crate) use build::build;
 pub(crate) use build::ACTION_BUILD;
 pub(crate) use cleanup::cleanup;
 pub(crate) use cleanup::ACTION_CLEANUP;
+pub(crate) use jail::update_jail;
+pub(crate) use jail::ACTION_UPDATE_JAIL;
 pub(crate) use ports_tree::update_ports_tree;
 pub(crate) use ports_tree::ACTION_UPDATE_PORTS_TREE;
diff --git a/src/db/init.rs b/src/db/init.rs
index 07c9cb2..6c831b0 100644
--- a/src/db/init.rs
+++ b/src/db/init.rs
@@ -6,6 +6,7 @@ use rusqlite::params;
 use rusqlite::Connection;
 
 use super::DbGlobalAction;
+use super::DbJailAction;
 use super::DbLocalAction;
 
 static DB_INIT_QUERY: &str = include_str!("../../migrations/01_init.sql");
@@ -43,6 +44,27 @@ impl DbHandle {
         Ok(rows)
     }
 
+    pub(crate) fn get_pending_jail_actions(
+        &mut self,
+    ) -> Result<Vec<DbJailAction>, Box<dyn std::error::Error>> {
+        let now = SystemTime::now()
+            .duration_since(SystemTime::UNIX_EPOCH)?
+            .as_secs();
+        let mut stmt = self
+            .conn
+            .prepare("SELECT name, jail_name, next_run FROM jail_action WHERE next_run <= $1")?;
+        let rows = stmt
+            .query_map(params![now], |row| {
+                Ok(DbJailAction {
+                    name: row.get(0)?,
+                    jail_name: row.get(1)?,
+                    next_run: row.get(2)?,
+                })
+            })?
+            .collect::<Result<Vec<_>, _>>()?;
+        Ok(rows)
+    }
+
     pub(crate) fn get_pending_local_actions(
         &mut self,
     ) -> Result<Vec<DbLocalAction>, Box<dyn std::error::Error>> {
@@ -71,7 +93,7 @@ impl DbHandle {
     ) -> Result<Duration, Box<dyn std::error::Error>> {
         let now = SystemTime::now();
         let mut stmt = self.conn.prepare(
-            "WITH next_runs AS (SELECT next_run FROM global_action UNION SELECT next_run FROM local_action) SELECT next_run FROM next_runs ORDER BY next_run ASC",
+            "WITH next_runs AS (SELECT next_run FROM global_action UNION SELECT next_run FROM jail_action UNION SELECT next_run FROM local_action) SELECT min(next_run) FROM next_runs;",
         )?;
         let rows = stmt
             .query_map(params![], |row| row.get(0))?
diff --git a/src/db/mod.rs b/src/db/mod.rs
index 4f8be4f..808ac68 100644
--- a/src/db/mod.rs
+++ b/src/db/mod.rs
@@ -3,4 +3,5 @@ mod types;
 
 pub(crate) use init::DbHandle;
 pub(crate) use types::DbGlobalAction;
+pub(crate) use types::DbJailAction;
 pub(crate) use types::DbLocalAction;
diff --git a/src/db/types.rs b/src/db/types.rs
index 2b6654c..fc86836 100644
--- a/src/db/types.rs
+++ b/src/db/types.rs
@@ -4,6 +4,13 @@ pub(crate) struct DbGlobalAction {
     pub(crate) next_run: i64,
 }
 
+pub(crate) struct DbJailAction {
+    pub(crate) name: String,
+    pub(crate) jail_name: String,
+    #[allow(dead_code)]
+    pub(crate) next_run: i64,
+}
+
 pub(crate) struct DbLocalAction {
     pub(crate) name: String,
     pub(crate) jail_name: String,
diff --git a/src/main.rs b/src/main.rs
index 811bc54..855cf92 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,9 +3,11 @@ use std::{thread, time};
 
 use crate::action::build;
 use crate::action::cleanup;
+use crate::action::update_jail;
 use crate::action::update_ports_tree;
 use crate::action::ACTION_BUILD;
 use crate::action::ACTION_CLEANUP;
+use crate::action::ACTION_UPDATE_JAIL;
 use crate::action::ACTION_UPDATE_PORTS_TREE;
 
 mod action;
@@ -32,6 +34,17 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
             };
         }
 
+        for pending_jail_action in db_conn.get_pending_jail_actions()? {
+            match pending_jail_action.name.as_str() {
+                ACTION_UPDATE_JAIL => {
+                    update_jail(&mut db_conn, &pending_jail_action)?;
+                }
+                _ => {
+                    panic!("Unknown jail action: {}", pending_jail_action.name);
+                }
+            }
+        }
+
         for pending_local_action in db_conn.get_pending_local_actions()? {
             match pending_local_action.name.as_str() {
                 ACTION_BUILD => {