diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 5394c90b..22c2ac24 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -139,27 +139,27 @@ jobs:
           - id: linux-x64
             zig_target: x86_64-linux-gnu
             binary_name: codex-auth
-            archive_name: codex-auth-Linux-X64.tar.gz
+            archive_name: codex-auth-linux-x64.tar.gz
           - id: linux-arm64
             zig_target: aarch64-linux-gnu
             binary_name: codex-auth
-            archive_name: codex-auth-Linux-ARM64.tar.gz
+            archive_name: codex-auth-linux-arm64.tar.gz
           - id: darwin-x64
             zig_target: x86_64-macos-none
             binary_name: codex-auth
-            archive_name: codex-auth-macOS-X64.tar.gz
+            archive_name: codex-auth-macos-x64.tar.gz
           - id: darwin-arm64
             zig_target: aarch64-macos-none
             binary_name: codex-auth
-            archive_name: codex-auth-macOS-ARM64.tar.gz
+            archive_name: codex-auth-macos-arm64.tar.gz
           - id: win32-x64
             zig_target: x86_64-windows-gnu
             binary_name: codex-auth.exe
-            archive_name: codex-auth-Windows-X64.zip
+            archive_name: codex-auth-windows-x64.zip
           - id: win32-arm64
             zig_target: aarch64-windows-gnu
             binary_name: codex-auth.exe
-            archive_name: codex-auth-Windows-ARM64.zip
+            archive_name: codex-auth-windows-arm64.zip
 
     steps:
       - name: Checkout
diff --git a/scripts/npm/metadata.mjs b/scripts/npm/metadata.mjs
index e81a8fc0..75f6646e 100644
--- a/scripts/npm/metadata.mjs
+++ b/scripts/npm/metadata.mjs
@@ -23,7 +23,7 @@ export const platformPackages = [
     cpu: "x64",
     binaryName: "codex-auth",
     binaryFiles: ["codex-auth"],
-    archiveName: "codex-auth-Linux-X64.tar.gz",
+    archiveName: "codex-auth-linux-x64.tar.gz",
     zigTarget: "x86_64-linux-gnu"
   },
   {
@@ -34,7 +34,7 @@ export const platformPackages = [
     cpu: "arm64",
     binaryName: "codex-auth",
     binaryFiles: ["codex-auth"],
-    archiveName: "codex-auth-Linux-ARM64.tar.gz",
+    archiveName: "codex-auth-linux-arm64.tar.gz",
     zigTarget: "aarch64-linux-gnu"
   },
   {
@@ -45,7 +45,7 @@ export const platformPackages = [
     cpu: "x64",
     binaryName: "codex-auth",
     binaryFiles: ["codex-auth"],
-    archiveName: "codex-auth-macOS-X64.tar.gz",
+    archiveName: "codex-auth-macos-x64.tar.gz",
     zigTarget: "x86_64-macos-none"
   },
   {
@@ -56,7 +56,7 @@ export const platformPackages = [
     cpu: "arm64",
     binaryName: "codex-auth",
     binaryFiles: ["codex-auth"],
-    archiveName: "codex-auth-macOS-ARM64.tar.gz",
+    archiveName: "codex-auth-macos-arm64.tar.gz",
     zigTarget: "aarch64-macos-none"
   },
   {
@@ -67,7 +67,7 @@ export const platformPackages = [
     cpu: "x64",
     binaryName: "codex-auth.exe",
     binaryFiles: ["codex-auth.exe"],
-    archiveName: "codex-auth-Windows-X64.zip",
+    archiveName: "codex-auth-windows-x64.zip",
     zigTarget: "x86_64-windows-gnu"
   },
   {
@@ -78,7 +78,7 @@ export const platformPackages = [
     cpu: "arm64",
     binaryName: "codex-auth.exe",
     binaryFiles: ["codex-auth.exe"],
-    archiveName: "codex-auth-Windows-ARM64.zip",
+    archiveName: "codex-auth-windows-arm64.zip",
     zigTarget: "aarch64-windows-gnu"
   }
 ];