diff --git a/package-lock.json b/package-lock.json
index 3c03734..a205b5f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "license": "MIT",
       "dependencies": {
         "hono": "^4.13.13",
-        "js-yaml": "^4.3.2"
+        "js-yaml": "^5.4.3"
       },
       "devDependencies": {
         "@cloudflare/vitest-plugin": "^1.4.0",
@@ -2913,9 +2913,9 @@
       "license": "ISC"
     },
     "node_modules/js-yaml": {
-      "version": "4.3.2",
-      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.3.2.tgz",
-      "integrity": "sha512-SFNOvSJ+Dgf/9An904Yx+CgSlIPCkIpao4qo51lpee25TIRejdH3rhR4EZMGoNx3/TP3O+wzWuiTFl4sqbltzA==",
+      "version": "5.4.3",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-5.4.3.tgz",
+      "integrity": "sha512-yzzNtgczwgoVHNigCyKTXcQJU4Y8t/ikU4UxXW0BvrLfHTGWZhsNcOT2s/a7vn81/4KqVnNmHjaUEPlvWnNwVw==",
       "funding": [
         {
           "type": "github",
@@ -2931,7 +2931,7 @@
         "argparse": "^2.0.1"
       },
       "bin": {
-        "js-yaml": "bin/js-yaml.js"
+        "js-yaml": "bin/js-yaml.mjs"
       }
     },
     "node_modules/json-schema-traverse": {
diff --git a/package.json b/package.json
index ad53aa2..6fcfcec 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
   "homepage": "https://github.com/InternetPublicLibrary/contribute#readme",
   "dependencies": {
     "hono": "^4.13.13",
-    "js-yaml": "^4.3.2"
+    "js-yaml": "^5.4.3"
   },
   "devDependencies": {
     "@cloudflare/vitest-plugin": "^1.4.0",