diff --git a/fern/package.json b/fern/package.json
index 4d4d344..12281ee 100644
--- a/fern/package.json
+++ b/fern/package.json
@@ -6,7 +6,7 @@
     "clean": "rm -rf sdks/typescript/dist"
   },
   "devDependencies": {
-    "fern-api": "4.67.0",
+    "fern-api": "4.86.2",
     "@types/node": "25.6.0",
     "typescript": "5.9.3"
   }
diff --git a/package-lock.json b/package-lock.json
index 26b5855..8f578f5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,8 +17,8 @@
     },
     "fern": {
       "devDependencies": {
-        "@types/node": "^25.6.0",
-        "fern-api": "4.67.0",
+        "@types/node": "25.6.0",
+        "fern-api": "^4.86.2",
         "typescript": "5.9.3"
       }
     },
@@ -1930,9 +1930,9 @@
       "link": true
     },
     "node_modules/fern-api": {
-      "version": "4.67.0",
-      "resolved": "https://registry.npmjs.org/fern-api/-/fern-api-4.67.0.tgz",
-      "integrity": "sha512-cVblUFpRz8ZEX45uBsi45jd0BPWtPivlleuwOHPjEIP3p3dI17zYaFq8B9v/zWYX8bsvECu97c297iCOeY0sSw==",
+      "version": "4.86.2",
+      "resolved": "https://registry.npmjs.org/fern-api/-/fern-api-4.86.2.tgz",
+      "integrity": "sha512-crynPbayL67MFNeIolPEcd7iubKgM/5cWxT3+aan4dGjjZL9M6udJ5Tybvynr5ez2zNfClnLE/G7lN0K55JUMg==",
       "dev": true,
       "dependencies": {
         "@boundaryml/baml": "^0.219.0"