diff --git a/package-lock.json b/package-lock.json
index 239e0dcf..e5fa346b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,9 +5,9 @@
   "requires": true,
   "dependencies": {
     "@actions/core": {
-      "version": "1.2.6",
-      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.2.6.tgz",
-      "integrity": "sha512-ZQYitnqiyBc3D+k7LsgSBmMDVkOVidaagDG7j3fOym77jNunWRuYx7VSHa9GNfFZh+zh61xsCjRj4JxMZlDqTA=="
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.4.0.tgz",
+      "integrity": "sha512-CGx2ilGq5i7zSLgiiGUtBCxhRRxibJYU6Fim0Q1Wg2aQL2LTnF27zbqZOrxfvFQ55eSBW0L8uVStgtKMpa0Qlg=="
     },
     "@actions/github": {
       "version": "4.0.0",
diff --git a/package.json b/package.json
index 4f03ed46..0584eedf 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
   },
   "homepage": "https://github.com/peter-evans/repository-dispatch#readme",
   "dependencies": {
-    "@actions/core": "1.2.6",
+    "@actions/core": "1.4.0",
     "@actions/github": "4.0.0"
   },
   "devDependencies": {