diff --git a/SPECS/nodejs24/nodejs24.signatures.json b/SPECS/nodejs24/nodejs24.signatures.json
index 48d73d2d1b1..c7754ac8a3b 100644
--- a/SPECS/nodejs24/nodejs24.signatures.json
+++ b/SPECS/nodejs24/nodejs24.signatures.json
@@ -1,8 +1,8 @@
 {
  "Signatures": {
   "btest402.js": "fabaf4dacc13e93d54f825b87ffde18573214b149388a5f96176236dd31d7768",
-  "icu4c-77_1-data-bin-b.zip": "d8be12e03f782da350508b15354738ed97a3289008a787b6bd2a85434374bff4",
-  "icu4c-77_1-data-bin-l.zip": "0913674ff673c585f8bc08370916b6a6ccc30ffb6408a5c1bc3edbf5a687fd96",
+  "icu4c-78.2-data-bin-b.zip": "86c22b4fe9db681ea9cbf5975157c53f0f965b5a6b0b3c70558f0c5c78bfc04a",
+  "icu4c-78.2-data-bin-l.zip": "6fc51a8818242bfd83207ab89551166ac2fb4bf502d01e41cddc8cb6a0ba4cda",
   "node-v24.14.1.tar.xz": "7822507713f202cf2a551899d250259643f477b671706db421a6fb55c4aa0991"
  }
 }
diff --git a/SPECS/nodejs24/nodejs24.spec b/SPECS/nodejs24/nodejs24.spec
index 5d82cf6828f..e2e15467aa0 100644
--- a/SPECS/nodejs24/nodejs24.spec
+++ b/SPECS/nodejs24/nodejs24.spec
@@ -1,11 +1,11 @@
 # Retrieved from 'deps/npm/package.json' inside the sources tarball.
-%define npm_version 11.6.2
+%define npm_version 11.11.0
 
 %global nodejs_datadir %{_datarootdir}/nodejs
 
 # ICU - from tools/icu/current_ver.dep
-%global icu_major 77
-%global icu_minor 1
+%global icu_major 78
+%global icu_minor 2
 %global icu_version %{icu_major}.%{icu_minor}
 
 %global icudatadir %{nodejs_datadir}/icudata
@@ -16,7 +16,7 @@ Name:           nodejs24
 # WARNINGS: MUST check and update the 'npm_version' macro for every version update of this package.
 #           The version of NPM can be found inside the sources under 'deps/npm/package.json'.
 Version:        24.14.1
-Release:        2%{?dist}
+Release:        3%{?dist}
 License:        BSD AND MIT AND Public Domain AND NAIST-2003 AND Artistic-2.0
 Vendor:         Microsoft Corporation
 Distribution:   Azure Linux
@@ -26,8 +26,8 @@ URL:            https://github.com/nodejs/node
 # !!!! because it contains patented algorithms.
 # !!!  => use generate_source_tarball.sh script to create a clean and reproducible source tarball.
 Source0:        https://nodejs.org/download/release/v%{version}/node-v%{version}.tar.xz
-Source1:        https://github.com/unicode-org/icu/releases/download/release-%{icu_major}-%{icu_minor}/icu4c-%{icu_major}_%{icu_minor}-data-bin-b.zip
-Source2:        https://github.com/unicode-org/icu/releases/download/release-%{icu_major}-%{icu_minor}/icu4c-%{icu_major}_%{icu_minor}-data-bin-l.zip
+Source1:        https://github.com/unicode-org/icu/releases/download/release-%{icu_version}/icu4c-%{icu_version}-data-bin-b.zip
+Source2:        https://github.com/unicode-org/icu/releases/download/release-%{icu_version}/icu4c-%{icu_version}-data-bin-l.zip
 Source3:        btest402.js
 Patch0:         disable-tlsv1-tlsv1-1.patch
 Patch1:         CVE-2019-10906.patch
@@ -182,6 +182,12 @@ make cctest
 %{_prefix}/lib/node_modules/*
 
 %changelog
+* Tue May 19 2026 Sumit Jena <sumitjena@microsoft.com> - 24.14.1-3
+- Bump bundled ICU data to 78.2 to match upstream Node 24.14.1
+  (tools/icu/current_ver.dep); fixes segfault running @typespec/compiler
+  (nodejs/node#17161). Adjust Source1/Source2 URL templates for ICU 78.x
+  release naming (release-X.Y, icu4c-X.Y-...).
+
 * Mon Apr 13 2026 Azure Linux Security Servicing Account <azurelinux-security@microsoft.com> - 24.14.1-2
 - Patch for CVE-2026-33672, CVE-2026-33671