diff --git a/package-lock.json b/package-lock.json
index 98d9bfd..f308216 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6,7 +6,7 @@
     "": {
       "name": "action-send-mail",
       "dependencies": {
-        "@actions/core": "^1.2.7",
+        "@actions/core": "^1.6.0",
         "@actions/glob": "^0.2.0",
         "dotenv": "^1.1.4",
         "nodemailer": "^6.7.2",
@@ -14,9 +14,12 @@
       }
     },
     "node_modules/@actions/core": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.4.0.tgz",
-      "integrity": "sha512-CGx2ilGq5i7zSLgiiGUtBCxhRRxibJYU6Fim0Q1Wg2aQL2LTnF27zbqZOrxfvFQ55eSBW0L8uVStgtKMpa0Qlg=="
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.6.0.tgz",
+      "integrity": "sha512-NB1UAZomZlCV/LmJqkLhNTqtKfFXJZAUPcfl/zqG7EfsQdeUJtaWO98SGbuQ3pydJ3fHl2CvI/51OKYlCYYcaw==",
+      "dependencies": {
+        "@actions/http-client": "^1.0.11"
+      }
     },
     "node_modules/@actions/glob": {
       "version": "0.2.0",
@@ -27,6 +30,14 @@
         "minimatch": "^3.0.4"
       }
     },
+    "node_modules/@actions/http-client": {
+      "version": "1.0.11",
+      "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-1.0.11.tgz",
+      "integrity": "sha512-VRYHGQV1rqnROJqdMvGUbY/Kn8vriQe/F9HR2AlYHzmKuM/p3kjNuXhmdBfcVgsvRWTz5C5XW5xvndZrVBuAYg==",
+      "dependencies": {
+        "tunnel": "0.0.6"
+      }
+    },
     "node_modules/ansi-regex": {
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
@@ -190,6 +201,14 @@
         "node": ">=8"
       }
     },
+    "node_modules/tunnel": {
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/tunnel/-/tunnel-0.0.6.tgz",
+      "integrity": "sha512-1h/Lnq9yajKY2PEbBadPXj3VxsDDu844OnaAo52UVmIzIvwwtBPIuNvkjuzBlTWpfJyUbG3ez0KSBibQkj4ojg==",
+      "engines": {
+        "node": ">=0.6.11 <=0.7.0 || >=0.7.3"
+      }
+    },
     "node_modules/wrap-ansi": {
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
@@ -242,9 +261,12 @@
   },
   "dependencies": {
     "@actions/core": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.4.0.tgz",
-      "integrity": "sha512-CGx2ilGq5i7zSLgiiGUtBCxhRRxibJYU6Fim0Q1Wg2aQL2LTnF27zbqZOrxfvFQ55eSBW0L8uVStgtKMpa0Qlg=="
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.6.0.tgz",
+      "integrity": "sha512-NB1UAZomZlCV/LmJqkLhNTqtKfFXJZAUPcfl/zqG7EfsQdeUJtaWO98SGbuQ3pydJ3fHl2CvI/51OKYlCYYcaw==",
+      "requires": {
+        "@actions/http-client": "^1.0.11"
+      }
     },
     "@actions/glob": {
       "version": "0.2.0",
@@ -255,6 +277,14 @@
         "minimatch": "^3.0.4"
       }
     },
+    "@actions/http-client": {
+      "version": "1.0.11",
+      "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-1.0.11.tgz",
+      "integrity": "sha512-VRYHGQV1rqnROJqdMvGUbY/Kn8vriQe/F9HR2AlYHzmKuM/p3kjNuXhmdBfcVgsvRWTz5C5XW5xvndZrVBuAYg==",
+      "requires": {
+        "tunnel": "0.0.6"
+      }
+    },
     "ansi-regex": {
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
@@ -379,6 +409,11 @@
         "ansi-regex": "^5.0.1"
       }
     },
+    "tunnel": {
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/tunnel/-/tunnel-0.0.6.tgz",
+      "integrity": "sha512-1h/Lnq9yajKY2PEbBadPXj3VxsDDu844OnaAo52UVmIzIvwwtBPIuNvkjuzBlTWpfJyUbG3ez0KSBibQkj4ojg=="
+    },
     "wrap-ansi": {
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
diff --git a/package.json b/package.json
index 348790a..207392b 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
     "test": "node test/helloWorld.js"
   },
   "dependencies": {
-    "@actions/core": "^1.2.7",
+    "@actions/core": "^1.6.0",
     "@actions/glob": "^0.2.0",
     "nodemailer": "^6.7.2",
     "showdown": "^2.0.0",