diff --git a/sdks/typescript/package-lock.json b/sdks/typescript/package-lock.json
index 9d12d45..c22dc39 100644
--- a/sdks/typescript/package-lock.json
+++ b/sdks/typescript/package-lock.json
@@ -9,7 +9,7 @@
       "version": "0.7.1",
       "license": "Apache-2.0",
       "dependencies": {
-        "js-yaml": "^4.3.0"
+        "js-yaml": "^5.4.2"
       },
       "bin": {
         "lapsh": "dist/src/cli.js"
@@ -55,9 +55,9 @@
       "license": "Python-2.0"
     },
     "node_modules/js-yaml": {
-      "version": "4.3.0",
-      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.3.0.tgz",
-      "integrity": "sha512-1td788aAnnZ5qs7V2QIRl1owjtYpbKt749Y3xauqQgwIIGF/xXWz1wMTEBx5O3LK3lXLVuqXPdPxj2BoFHaW9Q==",
+      "version": "5.4.2",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-5.4.2.tgz",
+      "integrity": "sha512-m+aqu+LwO1O6sIopafj8HUVl5aawITwZQe/yHpMCKjaWBaA/d07B/QdMb3529REftiU+RMMHL3Vlsw3hON7vWg==",
       "funding": [
         {
           "type": "github",
@@ -73,7 +73,7 @@
         "argparse": "^2.0.1"
       },
       "bin": {
-        "js-yaml": "bin/js-yaml.js"
+        "js-yaml": "bin/js-yaml.mjs"
       }
     },
     "node_modules/typescript": {
diff --git a/sdks/typescript/package.json b/sdks/typescript/package.json
index 51527fa..baf3ed8 100644
--- a/sdks/typescript/package.json
+++ b/sdks/typescript/package.json
@@ -51,7 +51,7 @@
     "typescript": "^5.9.3"
   },
   "dependencies": {
-    "js-yaml": "^4.3.0"
+    "js-yaml": "^5.4.2"
   },
   "peerDependencies": {
     "@anthropic-ai/sdk": ">=0.20.0"