diff --git a/Cargo.lock b/Cargo.lock
index e5ef56bb0de1..4b3516c54d5b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2748,9 +2748,9 @@ dependencies = [
 
 [[package]]
 name = "ipc-channel"
-version = "0.14.0"
+version = "0.14.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "55162cbe44dacbc0b4a66d1067c885a9d5975f068a432801bba0493e1ece7a51"
+checksum = "3698b8affd5656032a074a7d40b3c2a29b71971f3e1ff6042b9d40724e20d97c"
 dependencies = [
  "bincode",
  "crossbeam-channel",
diff --git a/components/constellation/constellation.rs b/components/constellation/constellation.rs
index f0a6c513d664..25ba57b04df4 100644
--- a/components/constellation/constellation.rs
+++ b/components/constellation/constellation.rs
@@ -2833,6 +2833,9 @@ where
         debug!("Asking compositor to complete shutdown.");
         self.compositor_proxy
             .send(ToCompositorMsg::ShutdownComplete);
+
+        debug!("Shutting-down IPC router thread in constellation.");
+        ROUTER.shutdown();
     }
 
     fn handle_pipeline_exited(&mut self, pipeline_id: PipelineId) {
diff --git a/components/script/script_thread.rs b/components/script/script_thread.rs
index dd0f798fcecc..94aac4841dae 100644
--- a/components/script/script_thread.rs
+++ b/components/script/script_thread.rs
@@ -145,6 +145,7 @@ use script_traits::{ScriptToConstellationChan, TimerSchedulerMsg};
 use script_traits::{TouchEventType, TouchId, UntrustedNodeAddress, WheelDelta};
 use script_traits::{UpdatePipelineIdReason, WebrenderIpcSender, WindowSizeData, WindowSizeType};
 use servo_atoms::Atom;
+use servo_config::opts;
 use servo_url::{ImmutableOrigin, MutableOrigin, ServoUrl};
 use std::borrow::Cow;
 use std::cell::Cell;
@@ -2908,6 +2909,12 @@ impl ScriptThread {
             .as_ref()
             .map(|bhm| bhm.unregister());
 
+        // If we're in multiprocess mode, shut-down the IPC router for this process.
+        if opts::multiprocess() {
+            debug!("Exiting IPC router thread in script thread.");
+            ROUTER.shutdown();
+        }
+
         debug!("Exited script thread.");
     }