diff --git a/package-lock.json b/package-lock.json
index 9debb63..972259a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "1.5.0",
       "license": "MIT",
       "dependencies": {
-        "@actions/core": "^1.8.2",
+        "@actions/core": "^1.9.0",
         "@actions/github": "5.0.3"
       },
       "devDependencies": {
@@ -21,9 +21,9 @@
       }
     },
     "node_modules/@actions/core": {
-      "version": "1.8.2",
-      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.8.2.tgz",
-      "integrity": "sha512-FXcBL7nyik8K5ODeCKlxi+vts7torOkoDAKfeh61EAkAy1HAvwn9uVzZBY0f15YcQTcZZ2/iSGBFHEuioZWfDA==",
+      "version": "1.9.0",
+      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.9.0.tgz",
+      "integrity": "sha512-5pbM693Ih59ZdUhgk+fts+bUWTnIdHV3kwOSr+QIoFHMLg7Gzhwm0cifDY/AG68ekEJAkHnQVpcy4f6GjmzBCA==",
       "dependencies": {
         "@actions/http-client": "^2.0.1"
       }
@@ -2317,9 +2317,9 @@
   },
   "dependencies": {
     "@actions/core": {
-      "version": "1.8.2",
-      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.8.2.tgz",
-      "integrity": "sha512-FXcBL7nyik8K5ODeCKlxi+vts7torOkoDAKfeh61EAkAy1HAvwn9uVzZBY0f15YcQTcZZ2/iSGBFHEuioZWfDA==",
+      "version": "1.9.0",
+      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.9.0.tgz",
+      "integrity": "sha512-5pbM693Ih59ZdUhgk+fts+bUWTnIdHV3kwOSr+QIoFHMLg7Gzhwm0cifDY/AG68ekEJAkHnQVpcy4f6GjmzBCA==",
       "requires": {
         "@actions/http-client": "^2.0.1"
       }
diff --git a/package.json b/package.json
index 88b7537..1fbfe3a 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
   "homepage": "https://github.com/toshimaru/auto-author-assign#readme",
   "funding": "https://github.com/sponsors/toshimaru",
   "dependencies": {
-    "@actions/core": "^1.8.2",
+    "@actions/core": "^1.9.0",
     "@actions/github": "5.0.3"
   },
   "devDependencies": {