diff --git a/tools/syn2mas/package-lock.json b/tools/syn2mas/package-lock.json
index 9fd6665f5..e361cdf34 100644
--- a/tools/syn2mas/package-lock.json
+++ b/tools/syn2mas/package-lock.json
@@ -16,7 +16,7 @@
         "pg": "^8.11.3",
         "sqlite3": "^5.1.6",
         "ts-command-line-args": "^2.5.1",
-        "yaml": "^2.3.3",
+        "yaml": "^2.5.1",
         "zod": "^3.22.4"
       },
       "bin": {
@@ -7295,9 +7295,9 @@
       "peer": true
     },
     "node_modules/yaml": {
-      "version": "2.5.0",
-      "resolved": "https://registry.npmjs.org/yaml/-/yaml-2.5.0.tgz",
-      "integrity": "sha512-2wWLbGbYDiSqqIKoPjar3MPgB94ErzCtrNE1FdqGuaO0pi2JGjmE8aW8TDZwzU7vuxcGRdL/4gPQwQ7hD5AMSw==",
+      "version": "2.5.1",
+      "resolved": "https://registry.npmjs.org/yaml/-/yaml-2.5.1.tgz",
+      "integrity": "sha512-bLQOjaX/ADgQ20isPJRvF0iRUHIxVhYvr53Of7wGcWlO2jvtUlH5m87DsmulFVxRpNLOnI4tB6p/oh8D7kpn9Q==",
       "bin": {
         "yaml": "bin.mjs"
       },
diff --git a/tools/syn2mas/package.json b/tools/syn2mas/package.json
index 737ad85f5..4a7ed42ee 100644
--- a/tools/syn2mas/package.json
+++ b/tools/syn2mas/package.json
@@ -59,7 +59,7 @@
     "pg": "^8.11.3",
     "sqlite3": "^5.1.6",
     "ts-command-line-args": "^2.5.1",
-    "yaml": "^2.3.3",
+    "yaml": "^2.5.1",
     "zod": "^3.22.4"
   }
 }