diff --git a/additions/package-lock.json b/additions/package-lock.json
index a3d2d9cc..090aa851 100644
--- a/additions/package-lock.json
+++ b/additions/package-lock.json
@@ -12,7 +12,7 @@
         "@typespec/compiler": "*",
         "@typespec/http": "*",
         "@typespec/openapi": "*",
-        "@typespec/openapi3": "*",
+        "@typespec/openapi3": "latest",
         "@typespec/rest": "*"
       }
     },
@@ -731,9 +731,9 @@
       }
     },
     "node_modules/@typespec/compiler": {
-      "version": "1.14.0",
-      "resolved": "https://registry.npmjs.org/@typespec/compiler/-/compiler-1.14.0.tgz",
-      "integrity": "sha512-RRN0LGVDlonG/IbB2b4mvRjdCo6LywwB9/J8lOp6UaH7vtaFnKe5FL+rpxhof4rXx/zI/4OWnQO6c01bTCz4/Q==",
+      "version": "1.15.0",
+      "resolved": "https://registry.npmjs.org/@typespec/compiler/-/compiler-1.15.0.tgz",
+      "integrity": "sha512-NbCIRAIzyozchlSaGPVuyV43bC+y+OpXYCuT+8M8kt35Ln9zWzLFcIt7irofQ5QUXBZrHsBFpI5fTOFdCGeWCA==",
       "license": "MIT",
       "dependencies": {
         "@babel/code-frame": "^7.29.0",
@@ -744,9 +744,9 @@
         "is-unicode-supported": "^2.1.0",
         "mustache": "^4.2.0",
         "picocolors": "^1.1.1",
-        "prettier": "^3.8.1",
+        "prettier": "^3.9.5",
         "semver": "^7.7.4",
-        "tar": "^7.5.13",
+        "tar": "^7.5.21",
         "temporal-polyfill": "^1.0.1",
         "vscode-languageserver": "^10.0.0",
         "vscode-languageserver-textdocument": "^1.0.12",
@@ -762,9 +762,9 @@
       }
     },
     "node_modules/@typespec/compiler/node_modules/prettier": {
-      "version": "3.8.3",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.8.3.tgz",
-      "integrity": "sha512-7igPTM53cGHMW8xWuVTydi2KO233VFiTNyF5hLJqpilHfmn8C8gPf+PS7dUT64YcXFbiMGZxS9pCSxL/Dxm/Jw==",
+      "version": "3.9.6",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.9.6.tgz",
+      "integrity": "sha512-OpN0zzVdiaiAhxpuuj5efpIS4sY9j7bY6uR5mnj5yPzGkdkjNKSJeUThPb60Jw29QuAZgA4o+/iB49kFiaBX6g==",
       "license": "MIT",
       "bin": {
         "prettier": "bin/prettier.cjs"
@@ -843,16 +843,16 @@
       }
     },
     "node_modules/@typespec/http": {
-      "version": "1.13.0",
-      "resolved": "https://registry.npmjs.org/@typespec/http/-/http-1.13.0.tgz",
-      "integrity": "sha512-tf8XFddU6g1MZSAVCLC/0Xa4fNfUO0CcHe6PWpmC3bvUojxMnpRcERI2DdoRJ+aycB9Q+Z8wN8bJO3up6u+sCw==",
+      "version": "1.15.0",
+      "resolved": "https://registry.npmjs.org/@typespec/http/-/http-1.15.0.tgz",
+      "integrity": "sha512-LNyzYHyX3C0xyQQ262jhvIaVzTn7DqiDB2gz45w1m6ngJH9ArGU8XjO3o7PaZkl/nuB5MTpImnsXpHIV1rbi4Q==",
       "license": "MIT",
       "engines": {
         "node": ">=22.0.0"
       },
       "peerDependencies": {
-        "@typespec/compiler": "^1.13.0",
-        "@typespec/streams": "^0.83.0"
+        "@typespec/compiler": "^1.15.0",
+        "@typespec/streams": "^0.85.0"
       },
       "peerDependenciesMeta": {
         "@typespec/streams": {
@@ -861,22 +861,22 @@
       }
     },
     "node_modules/@typespec/openapi": {
-      "version": "1.13.0",
-      "resolved": "https://registry.npmjs.org/@typespec/openapi/-/openapi-1.13.0.tgz",
-      "integrity": "sha512-omPc9n+LM2WvjYwnIf31RCxmG17fFUOVLBRsWg4T1mbcsNCj4grnNP7Lwt+irIZCiKtmLKxq3ViE7jYixCkZ3g==",
+      "version": "1.15.0",
+      "resolved": "https://registry.npmjs.org/@typespec/openapi/-/openapi-1.15.0.tgz",
+      "integrity": "sha512-lHd3H5W23KOIGKyBPKpBLPHVOxcxuvqOBXGqlyPvGmHDgmD74mrUtHWxNoGx+QQESjx4tS8Tu6URNQBU6y6Q1Q==",
       "license": "MIT",
       "engines": {
         "node": ">=22.0.0"
       },
       "peerDependencies": {
-        "@typespec/compiler": "^1.13.0",
-        "@typespec/http": "^1.13.0"
+        "@typespec/compiler": "^1.15.0",
+        "@typespec/http": "^1.15.0"
       }
     },
     "node_modules/@typespec/openapi3": {
-      "version": "1.13.0",
-      "resolved": "https://registry.npmjs.org/@typespec/openapi3/-/openapi3-1.13.0.tgz",
-      "integrity": "sha512-G6ayl30kXYVhJvL2/zFwtTdWnCt6N6jZWxs8rAwYiFlZfaG8R/dzjRgcap9Dr0v+6AyWmRwooxRKM3TLi5R/mg==",
+      "version": "1.15.0",
+      "resolved": "https://registry.npmjs.org/@typespec/openapi3/-/openapi3-1.15.0.tgz",
+      "integrity": "sha512-Gc6OjBiAtPo3ohlkrDxQKt8+xdeR54tC+Cgu3YLlxUxrWHWYOfWQXzp4NX+sraiFjF6kX7t0G1A1kY7rgy73qw==",
       "license": "MIT",
       "dependencies": {
         "@scalar/json-magic": "^0.12.15",
@@ -892,14 +892,14 @@
         "node": ">=22.0.0"
       },
       "peerDependencies": {
-        "@typespec/compiler": "^1.13.0",
-        "@typespec/events": "^0.83.0",
-        "@typespec/http": "^1.13.0",
-        "@typespec/json-schema": "^1.13.0",
-        "@typespec/openapi": "^1.13.0",
-        "@typespec/sse": "^0.83.0",
-        "@typespec/streams": "^0.83.0",
-        "@typespec/versioning": "^0.83.0"
+        "@typespec/compiler": "^1.15.0",
+        "@typespec/events": "^0.85.0",
+        "@typespec/http": "^1.15.0",
+        "@typespec/json-schema": "^1.15.0",
+        "@typespec/openapi": "^1.15.0",
+        "@typespec/sse": "^0.85.0",
+        "@typespec/streams": "^0.85.0",
+        "@typespec/versioning": "^0.85.0"
       },
       "peerDependenciesMeta": {
         "@typespec/events": {