diff --git a/package-lock.json b/package-lock.json
index f0595064..c5d2178a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,7 +8,7 @@
       "dependencies": {
         "@actions/core": "^3.0.1",
         "@actions/glob": "^0.7.0",
-        "nodemailer": "^8.0.11",
+        "nodemailer": "^9.0.0",
         "showdown": "^2.1.0"
       }
     },
@@ -103,9 +103,9 @@
       }
     },
     "node_modules/nodemailer": {
-      "version": "8.0.11",
-      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-8.0.11.tgz",
-      "integrity": "sha512-nrO/pDAUKl+wXX+lx16tDLbnm0fW6sK/x8mgohaCpg+CdCEl482bD4tCuAZk2DyliruiNTIZxRCoWkDqJEnAiA==",
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-9.0.0.tgz",
+      "integrity": "sha512-tbPTid7d/p9jAA8CRZ3iomvrMaST0o6NYuY7v6JQZHpPRZ61mLFSPKYd7342NtOFuej9/+L48SOIxwfu2uDvtw==",
       "license": "MIT-0",
       "engines": {
         "node": ">=6.0.0"
diff --git a/package.json b/package.json
index b2f21bcd..77135310 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "dependencies": {
     "@actions/core": "^3.0.1",
     "@actions/glob": "^0.7.0",
-    "nodemailer": "^8.0.11",
+    "nodemailer": "^9.0.0",
     "showdown": "^2.1.0"
   }
 }