diff --git a/codegen/generator/src/OpenAI.Library.Plugin.csproj b/codegen/generator/src/OpenAI.Library.Plugin.csproj
index 1f666f35..868c3125 100644
--- a/codegen/generator/src/OpenAI.Library.Plugin.csproj
+++ b/codegen/generator/src/OpenAI.Library.Plugin.csproj
@@ -8,7 +8,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-      <PackageReference Include="Microsoft.TypeSpec.Generator.ClientModel" Version="1.0.0-alpha.20251021.4" />
+      <PackageReference Include="Microsoft.TypeSpec.Generator.ClientModel" Version="1.0.0-alpha.20251022.4" />
     </ItemGroup>
 
   <!-- Copy output to package dist path for local execution and  -->
diff --git a/codegen/package.json b/codegen/package.json
index c9941559..f78282d8 100644
--- a/codegen/package.json
+++ b/codegen/package.json
@@ -30,7 +30,7 @@
   "dependencies": {
     "@open-ai/plugin": "file:",
     "@azure-tools/typespec-client-generator-core": "0.61.0",
-    "@typespec/http-client-csharp": "1.0.0-alpha.20251021.4",
+    "@typespec/http-client-csharp": "1.0.0-alpha.20251022.4",
     "@typespec/http": "1.5.0",
     "@typespec/openapi": "1.5.0"
   },
diff --git a/package-lock.json b/package-lock.json
index e3661477..ac3b674d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -22,7 +22,7 @@
         "@azure-tools/typespec-client-generator-core": "0.61.0",
         "@open-ai/plugin": "file:",
         "@typespec/http": "1.5.0",
-        "@typespec/http-client-csharp": "1.0.0-alpha.20251021.4",
+        "@typespec/http-client-csharp": "1.0.0-alpha.20251022.4",
         "@typespec/openapi": "1.5.0"
       },
       "devDependencies": {
@@ -117,22 +117,22 @@
       }
     },
     "node_modules/@babel/helper-validator-identifier": {
-      "version": "7.27.1",
-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.27.1.tgz",
-      "integrity": "sha512-D2hP9eA+Sqx1kBZgzxZh0y1trbuU+JoDkiEwqhQ36nodYqJwyEIhPSdMNd7lOm/4io72luTPWH20Yda0xOuUow==",
+      "version": "7.28.5",
+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.28.5.tgz",
+      "integrity": "sha512-qSs4ifwzKJSV39ucNjsvc6WVHs6b7S03sOh2OcHF9UHfVPqWWALUsNUVzhSBiItjRZoLHx7nIarVjqKVusUZ1Q==",
       "license": "MIT",
       "engines": {
         "node": ">=6.9.0"
       }
     },
     "node_modules/@babel/parser": {
-      "version": "7.28.4",
-      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.28.4.tgz",
-      "integrity": "sha512-yZbBqeM6TkpP9du/I2pUZnJsRMGGvOuIrhjzC1AwHwW+6he4mni6Bp/m8ijn0iOuZuPI2BfkCoSRunpyjnrQKg==",
+      "version": "7.28.5",
+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.28.5.tgz",
+      "integrity": "sha512-KKBU1VGYR7ORr3At5HAtUQ+TV3SzRCXmA/8OdDZiLDBIZxVyzXuztPjfLd3BV1PRAQGCMWWSHYhL0F8d5uHBDQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@babel/types": "^7.28.4"
+        "@babel/types": "^7.28.5"
       },
       "bin": {
         "parser": "bin/babel-parser.js"
@@ -142,14 +142,14 @@
       }
     },
     "node_modules/@babel/types": {
-      "version": "7.28.4",
-      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.28.4.tgz",
-      "integrity": "sha512-bkFqkLhh3pMBUQQkpVgWDWq/lqzc2678eUyDlTBhRqhCHFguYYGM0Efga7tYk4TogG/3x0EEl66/OQ+WGbWB/Q==",
+      "version": "7.28.5",
+      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.28.5.tgz",
+      "integrity": "sha512-qQ5m48eI/MFLQ5PxQj4PFaprjyCTLI37ElWMmNs0K8Lk3dVeOdNpB3ks8jc7yM5CDmVC73eMVk/trk3fgmrUpA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
         "@babel/helper-string-parser": "^7.27.1",
-        "@babel/helper-validator-identifier": "^7.27.1"
+        "@babel/helper-validator-identifier": "^7.28.5"
       },
       "engines": {
         "node": ">=6.9.0"
@@ -1555,9 +1555,9 @@
       }
     },
     "node_modules/@typespec/http-client-csharp": {
-      "version": "1.0.0-alpha.20251021.4",
-      "resolved": "https://registry.npmjs.org/@typespec/http-client-csharp/-/http-client-csharp-1.0.0-alpha.20251021.4.tgz",
-      "integrity": "sha512-fDOnPwcjoiWOc30Jy+SJTAikT/4hv5KXS5TmA1mqnnaPzyMMdRpOAhqRfJi2bTI8ooi1D0eKeth+XOAKG0ZsFw==",
+      "version": "1.0.0-alpha.20251022.4",
+      "resolved": "https://registry.npmjs.org/@typespec/http-client-csharp/-/http-client-csharp-1.0.0-alpha.20251022.4.tgz",
+      "integrity": "sha512-0ArdprRUCvHFPaYbA11JAC+dckQhPT/gP1yESoSb4yO1ebHM++JGNWkznXLUFKMkyTkSx+j4iO9Q94gC5mqrEg==",
       "license": "MIT",
       "peerDependencies": {
         "@azure-tools/typespec-client-generator-core": ">=0.61.0 < 0.62.0 || ~0.62.0-0",
@@ -3001,9 +3001,9 @@
       "license": "ISC"
     },
     "node_modules/magic-string": {
-      "version": "0.30.19",
-      "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.30.19.tgz",
-      "integrity": "sha512-2N21sPY9Ws53PZvsEpVtNuSW+ScYbQdp4b9qUaL+9QkHUrGFKo56Lg9Emg5s9V/qrtNBmiR01sYhUOwu3H+VOw==",
+      "version": "0.30.21",
+      "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.30.21.tgz",
+      "integrity": "sha512-vd2F4YUyEXKGcLHoq+TEyCjxueSeHnFxyyjNp80yg0XV4vUhnDer/lvvlqM/arB5bXQN5K2/3oinyCRyx8T2CQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {