diff --git a/package-lock.json b/package-lock.json
index ab0ab53..981089d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
       "dependencies": {
         "@11ty/eleventy": "^3.1.2",
         "gray-matter": "^4.0.3",
-        "js-yaml": "^4.1.0",
+        "js-yaml": "^5.4.2",
         "prismjs": "^1.30.0"
       },
       "devDependencies": {
@@ -155,6 +155,28 @@
         "url": "https://opencollective.com/11ty"
       }
     },
+    "node_modules/@11ty/eleventy/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==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/puzrin"
+        },
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/nodeca"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "argparse": "^2.0.1"
+      },
+      "bin": {
+        "js-yaml": "bin/js-yaml.js"
+      }
+    },
     "node_modules/@11ty/lodash-custom": {
       "version": "4.17.21",
       "resolved": "https://registry.npmjs.org/@11ty/lodash-custom/-/lodash-custom-4.17.21.tgz",
@@ -920,9 +942,9 @@
       }
     },
     "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": "5.4.2",
+      "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",
@@ -938,7 +960,7 @@
         "argparse": "^2.0.1"
       },
       "bin": {
-        "js-yaml": "bin/js-yaml.js"
+        "js-yaml": "bin/js-yaml.mjs"
       }
     },
     "node_modules/junk": {
diff --git a/package.json b/package.json
index 263623b..9990157 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
   "dependencies": {
     "@11ty/eleventy": "^3.1.2",
     "gray-matter": "^4.0.3",
-    "js-yaml": "^4.1.0",
+    "js-yaml": "^5.4.2",
     "prismjs": "^1.30.0"
   },
   "overrides": {