diff --git a/package-lock.json b/package-lock.json
index 890bcee..eaea133 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,9 +5,9 @@
   "requires": true,
   "dependencies": {
     "@actions/core": {
-      "version": "1.2.5",
-      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.2.5.tgz",
-      "integrity": "sha512-mwpoNjHSWWh0IiALdDEQi3tru124JKn0yVNziIBzTME8QRv7thwoghVuT1jBRjFvdtoHsqD58IRHy1nf86paRg=="
+      "version": "1.2.6",
+      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.2.6.tgz",
+      "integrity": "sha512-ZQYitnqiyBc3D+k7LsgSBmMDVkOVidaagDG7j3fOym77jNunWRuYx7VSHa9GNfFZh+zh61xsCjRj4JxMZlDqTA=="
     },
     "@actions/exec": {
       "version": "1.0.4",
diff --git a/package.json b/package.json
index b81e219..3a51476 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
   },
   "homepage": "https://github.com/peaceiris/actions-mdbook#readme",
   "dependencies": {
-    "@actions/core": "^1.2.5",
+    "@actions/core": "^1.2.6",
     "@actions/exec": "^1.0.4",
     "@actions/io": "^1.0.2",
     "@actions/tool-cache": "^1.6.0",