diff --git a/eng/Packages.Data.props b/eng/Packages.Data.props
index 6c8d3c41e4e7..416077dda867 100644
--- a/eng/Packages.Data.props
+++ b/eng/Packages.Data.props
@@ -223,7 +223,7 @@
     All should have PrivateAssets="All" set so they don't become package dependencies
   -->
   <ItemGroup>
-    <PackageReference Update="Microsoft.Azure.AutoRest.CSharp" Version="3.0.0-beta.20240414.2" PrivateAssets="All" />
+    <PackageReference Update="Microsoft.Azure.AutoRest.CSharp" Version="3.0.0-alpha.20240415.2.x" PrivateAssets="All" />
     <PackageReference Update="Azure.ClientSdk.Analyzers" Version="0.1.1-dev.20240214.2" PrivateAssets="All" />
     <PackageReference Update="coverlet.collector" Version="3.2.0" PrivateAssets="All" />
     <PackageReference Update="Microsoft.CodeAnalysis.NetAnalyzers" Version="7.0.4" PrivateAssets="All" />
diff --git a/eng/emitter-package-lock.json b/eng/emitter-package-lock.json
index 24934cc0b668..ed7e632d0978 100644
--- a/eng/emitter-package-lock.json
+++ b/eng/emitter-package-lock.json
@@ -5,7 +5,7 @@
   "packages": {
     "": {
       "dependencies": {
-        "@azure-tools/typespec-csharp": "0.2.0-beta.20240414.2"
+        "@azure-tools/typespec-csharp": "https://pkgs.dev.azure.com/azure-sdk/public/_packaging/azure-sdk-for-js-test-autorest/npm/registry/@azure-tools/typespec-csharp/-/typespec-csharp-0.2.0-alpha.20240415.2.x.tgz"
       },
       "devDependencies": {
         "@azure-tools/typespec-azure-core": "0.41.0",
@@ -18,9 +18,9 @@
       }
     },
     "node_modules/@autorest/csharp": {
-      "version": "3.0.0-beta.20240414.2",
-      "resolved": "https://registry.npmjs.org/@autorest/csharp/-/csharp-3.0.0-beta.20240414.2.tgz",
-      "integrity": "sha512-GB5JXEISmHOpWUS8ww5FfxuWxyskSx9LruQ53fk9DatwnKpCHdjLU6GFEI5SGH+e1G6lBGsrOrHo8AfEdA0ugg=="
+      "version": "3.0.0-alpha.20240415.2.x",
+      "resolved": "https://pkgs.dev.azure.com/azure-sdk/public/_packaging/azure-sdk-for-js-test-autorest/npm/registry/@autorest/csharp/-/csharp-3.0.0-alpha.20240415.2.x.tgz",
+      "integrity": "sha512-HISLQ4cbCU8dqiq1RwnNIWuXGP18VtYcoSr+j1M8JpC+yt+Xc10M0m3J4ZiL0qkhjgBgoomIfPFxM+HwQn0ZKw=="
     },
     "node_modules/@azure-tools/typespec-azure-core": {
       "version": "0.41.0",
@@ -57,11 +57,12 @@
       }
     },
     "node_modules/@azure-tools/typespec-csharp": {
-      "version": "0.2.0-beta.20240414.2",
-      "resolved": "https://registry.npmjs.org/@azure-tools/typespec-csharp/-/typespec-csharp-0.2.0-beta.20240414.2.tgz",
-      "integrity": "sha512-guZmpNaLjUSoGGdhzH5xkcHXs4SajICUF5lnW5id17XwC4nWQf9seH1VpmbQIy1+0y/IVjuQ5WY5LQMcT0oCKQ==",
+      "version": "0.2.0-alpha.20240415.2.x",
+      "resolved": "https://pkgs.dev.azure.com/azure-sdk/public/_packaging/azure-sdk-for-js-test-autorest/npm/registry/@azure-tools/typespec-csharp/-/typespec-csharp-0.2.0-alpha.20240415.2.x.tgz",
+      "integrity": "sha512-1oYtew4v4DOG3xIJkMeBUZvYRmtE8QGczP36Q5bKEVRHK50znAN9zAfmqbmFjexgZIfV5WGOqy/FNCqNgR/yDQ==",
+      "license": "MIT",
       "dependencies": {
-        "@autorest/csharp": "3.0.0-beta.20240414.2",
+        "@autorest/csharp": "3.0.0-alpha.20240415.2.x",
         "json-serialize-refs": "0.1.0-0",
         "winston": "^3.8.2"
       },
diff --git a/eng/emitter-package.json b/eng/emitter-package.json
index bd203453822b..5acd05be6e80 100644
--- a/eng/emitter-package.json
+++ b/eng/emitter-package.json
@@ -1,15 +1,18 @@
 {
   "main": "dist/src/index.js",
   "dependencies": {
-    "@azure-tools/typespec-csharp": "0.2.0-beta.20240414.2"
+    "@azure-tools/typespec-csharp": "https://pkgs.dev.azure.com/azure-sdk/public/_packaging/azure-sdk-for-js-test-autorest/npm/registry/@azure-tools/typespec-csharp/-/typespec-csharp-0.2.0-alpha.20240415.2.x.tgz"
   },
   "devDependencies": {
-    "@typespec/compiler": "0.55.0",
-    "@typespec/http": "0.55.0",
+    "@typespec/versioning": "0.55.0",
     "@typespec/rest": "0.55.0",
     "@azure-tools/typespec-client-generator-core": "0.42.0-dev.8",
-    "@typespec/openapi": "0.55.0",
+    "@typespec/http": "0.55.0",
     "@azure-tools/typespec-azure-core": "0.41.0",
-    "@typespec/versioning": "0.55.0"
+    "@typespec/compiler": "0.55.0",
+    "@typespec/openapi": "0.55.0"
+  },
+  "overrides": {
+    "@autorest/csharp": "https://pkgs.dev.azure.com/azure-sdk/public/_packaging/azure-sdk-for-js-test-autorest/npm/registry/@autorest/csharp/-/csharp-3.0.0-alpha.20240415.2.x.tgz"
   }
 }