diff --git a/eng/Packages.Data.props b/eng/Packages.Data.props
index 90e1c3c3adc08..93438b92f90ec 100644
--- a/eng/Packages.Data.props
+++ b/eng/Packages.Data.props
@@ -200,7 +200,7 @@
     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.20240118.1" PrivateAssets="All" />
+    <PackageReference Update="Microsoft.Azure.AutoRest.CSharp" Version="3.0.0-alpha.20240119.1.x" PrivateAssets="All" />
     <PackageReference Update="Azure.ClientSdk.Analyzers" Version="0.1.1-dev.20231116.1" 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 3234eea80abf8..e3a000ed75e69 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.20240118.1"
+        "@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.20240119.1.x.tgz"
       },
       "devDependencies": {
         "@azure-tools/typespec-azure-core": "0.37.0",
@@ -17,9 +17,9 @@
       }
     },
     "node_modules/@autorest/csharp": {
-      "version": "3.0.0-beta.20240118.1",
-      "resolved": "https://registry.npmjs.org/@autorest/csharp/-/csharp-3.0.0-beta.20240118.1.tgz",
-      "integrity": "sha512-Bu5+Ocse37MxYbf50nm4mHg2UhipZrn8Gj2dbR+OLqopBoeiiW8FdZLNIm1emn48qBmNsIvQzlzMGLHFl3vo1g=="
+      "version": "3.0.0-alpha.20240119.1.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.20240119.1.x.tgz",
+      "integrity": "sha512-EHe3VqNoxjfXu7lqmoO+tBA1G7yMfbHk82quFBOGxFB0dK/WWPzrwdX5Sqlezb0UwdQPzpFkc+ecB2RDtl2xvQ=="
     },
     "node_modules/@azure-tools/typespec-azure-core": {
       "version": "0.37.0",
@@ -55,11 +55,12 @@
       }
     },
     "node_modules/@azure-tools/typespec-csharp": {
-      "version": "0.2.0-beta.20240118.1",
-      "resolved": "https://registry.npmjs.org/@azure-tools/typespec-csharp/-/typespec-csharp-0.2.0-beta.20240118.1.tgz",
-      "integrity": "sha512-NylP6/A3ll0YdWrHv829BSvF2/kkjIsJNMP7VQ2Ju69RAWNbkE65qyAfHOs84/ldsphYnmWPbzGYi2ojZitPYQ==",
+      "version": "0.2.0-alpha.20240119.1.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.20240119.1.x.tgz",
+      "integrity": "sha512-2f/NYBTqMQmYFmZYm7xCd3bUw/x87kriU7S3raiI+HlWyxAODr7Av/XSySADDoIzvhvX8ImgxY7liFE4WjMd1g==",
+      "license": "MIT",
       "dependencies": {
-        "@autorest/csharp": "3.0.0-beta.20240118.1",
+        "@autorest/csharp": "3.0.0-alpha.20240119.1.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 f2a2a50f53842..2f04114fb9dc3 100644
--- a/eng/emitter-package.json
+++ b/eng/emitter-package.json
@@ -1,14 +1,17 @@
 {
   "main": "dist/src/index.js",
   "dependencies": {
-    "@azure-tools/typespec-csharp": "0.2.0-beta.20240118.1"
+    "@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.20240119.1.x.tgz"
   },
   "devDependencies": {
+    "@typespec/http": "0.51.0",
     "@typespec/compiler": "0.51.0",
-    "@typespec/rest": "0.51.0",
-    "@azure-tools/typespec-client-generator-core": "0.37.0",
     "@typespec/versioning": "0.51.0",
-    "@azure-tools/typespec-azure-core": "0.37.0",
-    "@typespec/http": "0.51.0"
+    "@azure-tools/typespec-client-generator-core": "0.37.0",
+    "@typespec/rest": "0.51.0",
+    "@azure-tools/typespec-azure-core": "0.37.0"
+  },
+  "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.20240119.1.x.tgz"
   }
 }