diff --git a/web/services/iroh/publicationPolicy.ts b/web/services/iroh/publicationPolicy.ts
index 4a9a1761997a..89e757264134 100644
--- a/web/services/iroh/publicationPolicy.ts
+++ b/web/services/iroh/publicationPolicy.ts
@@ -8,10 +8,13 @@
  */
 
 export const MANAGED_RELAY_URLS = [
-  "https://euc1-1.relay.lawrence.cmux.iroh.link/",
-  "https://use1-1.relay.lawrence.cmux.iroh.link/",
-  "https://usw1-1.relay.lawrence.cmux.iroh.link/",
-  "https://aps1-1.relay.lawrence.cmux.iroh.link/",
+  "https://usc1.relay.cmux.dev/",
+  "https://usw1.relay.cmux.dev/",
+  "https://use4.relay.cmux.dev/",
+  "https://euw4.relay.cmux.dev/",
+  "https://apne1.relay.cmux.dev/",
+  "https://apse1.relay.cmux.dev/",
+  "https://ape1.relay.cmux.dev/",
 ] as const;
 
 const MANAGED_RELAY_URL_SET: ReadonlySet<string> = new Set(MANAGED_RELAY_URLS);
diff --git a/web/tests/devices-route.test.ts b/web/tests/devices-route.test.ts
index 71c22b4f60da..2fe5253e5b98 100644
--- a/web/tests/devices-route.test.ts
+++ b/web/tests/devices-route.test.ts
@@ -35,7 +35,7 @@ let sql: Sql | null = null;
 const DEVICE_A = "11111111-1111-4111-8111-111111111111";
 const DEVICE_B = "22222222-2222-4222-8222-222222222222";
 const IROH_ENDPOINT_ID = "a".repeat(64);
-const APPROVED_IROH_RELAY = "https://use1-1.relay.lawrence.cmux.iroh.link/";
+const APPROVED_IROH_RELAY = "https://use4.relay.cmux.dev/";
 
 const legacyTailscaleRoute = {
   id: "legacy",
diff --git a/workers/presence/src/routePrivacy.ts b/workers/presence/src/routePrivacy.ts
index 208c4079f53e..2b41aaa7663f 100644
--- a/workers/presence/src/routePrivacy.ts
+++ b/workers/presence/src/routePrivacy.ts
@@ -2,10 +2,13 @@
 // The Worker cannot import from `web/` because each deployment has its own
 // build root. Exact URLs are intentional: arbitrary relay URLs are path hints.
 export const APPROVED_IROH_RELAY_URLS = [
-  "https://euc1-1.relay.lawrence.cmux.iroh.link/",
-  "https://use1-1.relay.lawrence.cmux.iroh.link/",
-  "https://usw1-1.relay.lawrence.cmux.iroh.link/",
-  "https://aps1-1.relay.lawrence.cmux.iroh.link/",
+  "https://usc1.relay.cmux.dev/",
+  "https://usw1.relay.cmux.dev/",
+  "https://use4.relay.cmux.dev/",
+  "https://euw4.relay.cmux.dev/",
+  "https://apne1.relay.cmux.dev/",
+  "https://apse1.relay.cmux.dev/",
+  "https://ape1.relay.cmux.dev/",
 ] as const;
 
 const APPROVED_IROH_RELAY_URL_SET: ReadonlySet<string> = new Set(APPROVED_IROH_RELAY_URLS);
diff --git a/workers/presence/test/core.test.ts b/workers/presence/test/core.test.ts
index b268925b6030..1c5cfec61d70 100644
--- a/workers/presence/test/core.test.ts
+++ b/workers/presence/test/core.test.ts
@@ -332,7 +332,7 @@ describe("heartbeat routes", () => {
     endpoint: {
       type: "peer",
       id: "a".repeat(64),
-      relay_url: "https://use1-1.relay.lawrence.cmux.iroh.link/",
+      relay_url: "https://use4.relay.cmux.dev/",
       relay_hint: "legacy-private-relay-hint",
       direct_addrs: ["192.168.1.20:49152"],
     },
@@ -344,7 +344,7 @@ describe("heartbeat routes", () => {
     endpoint: {
       type: "peer",
       id: "a".repeat(64),
-      relay_url: "https://use1-1.relay.lawrence.cmux.iroh.link/",
+      relay_url: "https://use4.relay.cmux.dev/",
     },
   };
 
diff --git a/workers/presence/test/syncPairedMacs.test.ts b/workers/presence/test/syncPairedMacs.test.ts
index 1f110ea49f29..754574055ad2 100644
--- a/workers/presence/test/syncPairedMacs.test.ts
+++ b/workers/presence/test/syncPairedMacs.test.ts
@@ -134,7 +134,7 @@ describe("parsePairedMacBackup", () => {
                 id: "a".repeat(64),
                 direct_addrs: ["192.168.1.20:49152"],
                 relay_hint: "legacy-private-relay-hint",
-                relay_url: "https://use1-1.relay.lawrence.cmux.iroh.link/",
+                relay_url: "https://use4.relay.cmux.dev/",
               },
             },
           ],
@@ -153,7 +153,7 @@ describe("parsePairedMacBackup", () => {
         endpoint: {
           type: "peer",
           id: "a".repeat(64),
-          relay_url: "https://use1-1.relay.lawrence.cmux.iroh.link/",
+          relay_url: "https://use4.relay.cmux.dev/",
         },
       },
     ]);
@@ -175,7 +175,7 @@ describe("applyBackupOps", () => {
             id: "a".repeat(64),
             direct_addrs: ["192.168.1.20:49152"],
             relay_hint: "legacy-private-relay-hint",
-            relay_url: "https://use1-1.relay.lawrence.cmux.iroh.link/",
+            relay_url: "https://use4.relay.cmux.dev/",
           },
         },
       ],
@@ -211,7 +211,7 @@ describe("applyBackupOps", () => {
         endpoint: {
           type: "peer",
           id: "a".repeat(64),
-          relay_url: "https://use1-1.relay.lawrence.cmux.iroh.link/",
+          relay_url: "https://use4.relay.cmux.dev/",
         },
       },
     ]);
diff --git a/workers/presence/test/syncStorage.test.ts b/workers/presence/test/syncStorage.test.ts
index 7e3428f34bf8..00cdba349697 100644
--- a/workers/presence/test/syncStorage.test.ts
+++ b/workers/presence/test/syncStorage.test.ts
@@ -598,7 +598,7 @@ describe("deriveDeviceRecord edge cases", () => {
                 id: "a".repeat(64),
                 direct_addrs: ["192.168.1.20:49152"],
                 relay_hint: "legacy-private-relay-hint",
-                relay_url: "https://use1-1.relay.lawrence.cmux.iroh.link/",
+                relay_url: "https://use4.relay.cmux.dev/",
               },
             },
           ],
@@ -614,7 +614,7 @@ describe("deriveDeviceRecord edge cases", () => {
         endpoint: {
           type: "peer",
           id: "a".repeat(64),
-          relay_url: "https://use1-1.relay.lawrence.cmux.iroh.link/",
+          relay_url: "https://use4.relay.cmux.dev/",
         },
       },
     ]);
diff --git a/workers/presence/test/validate.test.ts b/workers/presence/test/validate.test.ts
index 305bf7b1a9ec..ad9ffe4d544f 100644
--- a/workers/presence/test/validate.test.ts
+++ b/workers/presence/test/validate.test.ts
@@ -3,7 +3,7 @@ import { MAX_REQUEST_BYTES, MAX_ROUTES, parseHeartbeat, readBoundedJson } from "
 
 const DEVICE_ID = "11111111-2222-4333-8444-555555555555";
 const IROH_ENDPOINT_ID = "a".repeat(64);
-const APPROVED_IROH_RELAY = "https://use1-1.relay.lawrence.cmux.iroh.link/";
+const APPROVED_IROH_RELAY = "https://use4.relay.cmux.dev/";
 
 function postRequest(
   body: string | ReadableStream<Uint8Array>,