diff --git a/src/commands/start.rs b/src/commands/start.rs
index 08d42b11..2a10714f 100644
--- a/src/commands/start.rs
+++ b/src/commands/start.rs
@@ -2,11 +2,12 @@
 
 use std::path::PathBuf;
 
-use anyhow::{bail, Result};
+use anyhow::{bail, Context, Result};
 use clap::Clap;
 use nix::unistd;
 
 use crate::container::{Container, ContainerStatus};
+use crate::hooks;
 use crate::notify_socket::{NotifySocket, NOTIFY_FILE};
 
 #[derive(Clap, Debug)]
@@ -39,8 +40,17 @@ impl Start {
 
         let mut notify_socket = NotifySocket::new(&container.root.join(NOTIFY_FILE));
         notify_socket.notify_container_start()?;
-
         container.update_status(ContainerStatus::Running).save()?;
+
+        // Run post start hooks. It runs after the container process is started.
+        // It is called in the Runtime Namespace.
+        let spec_path = container.root.join("config.json");
+        let spec = oci_spec::Spec::load(spec_path).context("failed to load spec")?;
+        if let Some(hooks) = spec.hooks.as_ref() {
+            hooks::run_hooks(hooks.poststart.as_ref(), Some(&container))
+                .with_context(|| "Failed to run post start hooks")?;
+        }
+
         Ok(())
     }
 }