diff --git a/README.md b/README.md
index 3a4e449..18502c7 100644
--- a/README.md
+++ b/README.md
@@ -327,6 +327,10 @@ Apache-2.0.
 
 ## Release Notes
 
+### 2.11.4
+
+* Updated `mapcode-ts` to 1.0.3. It contains the same code as 1.0.2.
+
 ### 2.11.3
 
 * Updated `mapcode-ts` to 1.0.2, which renames 5 territories: COK to
diff --git a/package-lock.json b/package-lock.json
index f2a39a8..9c0871b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,19 +1,19 @@
 {
   "name": "mapcode-rest-service-ts",
-  "version": "2.11.3",
+  "version": "2.11.4",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "mapcode-rest-service-ts",
-      "version": "2.11.3",
+      "version": "2.11.4",
       "license": "Apache-2.0",
       "dependencies": {
         "@fastify/compress": "^9.2.2",
         "fastify": "^5.12.7",
         "flatbush": "^4.6.2",
         "flatgeobuf": "^4.6.1",
-        "mapcode-ts": "1.0.2",
+        "mapcode-ts": "1.0.3",
         "pg": "^8.23.1"
       },
       "devDependencies": {
@@ -1776,9 +1776,9 @@
       }
     },
     "node_modules/mapcode-ts": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/mapcode-ts/-/mapcode-ts-1.0.2.tgz",
-      "integrity": "sha512-t+PMgTtF18ZqC0M27BZe+enZTlf9LxK3sNG9rSv4tisbidkyJNEvtx/OUXBzBClwL17tE3oTSfv51G1s6b7hKA==",
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/mapcode-ts/-/mapcode-ts-1.0.3.tgz",
+      "integrity": "sha512-1OtUN3WiM8sBD75mqbW/vdPxYwo7kD/v+Ebg7HBI828AOVktrRr6ylKA5zK7DOfyFvqt32pbvuwEWFlJ+fdEzw==",
       "license": "Apache-2.0",
       "engines": {
         "node": ">=20"
diff --git a/package.json b/package.json
index 1a7577a..ac0fce0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mapcode-rest-service-ts",
-  "version": "2.11.3",
+  "version": "2.11.4",
   "description": "TypeScript port of the Mapcode REST API service.",
   "private": true,
   "type": "module",
@@ -22,7 +22,7 @@
     "fastify": "^5.12.7",
     "flatbush": "^4.6.2",
     "flatgeobuf": "^4.6.1",
-    "mapcode-ts": "1.0.2",
+    "mapcode-ts": "1.0.3",
     "pg": "^8.23.1"
   },
   "devDependencies": {
diff --git a/test/package-config.test.ts b/test/package-config.test.ts
index c42366f..6ae794f 100644
--- a/test/package-config.test.ts
+++ b/test/package-config.test.ts
@@ -20,9 +20,9 @@ const packageLock = JSON.parse(readFileSync(new URL("../package-lock.json", impo
 
 describe("package dependency configuration", () => {
   it("keeps package metadata at the release version", () => {
-    expect(packageJson.version).toBe("2.11.3");
-    expect(packageLock.version).toBe("2.11.3");
-    expect(packageLock.packages[""].version).toBe("2.11.3");
+    expect(packageJson.version).toBe("2.11.4");
+    expect(packageLock.version).toBe("2.11.4");
+    expect(packageLock.packages[""].version).toBe("2.11.4");
   });
 
   it("uses a registry-resolvable mapcode-ts dependency", () => {