diff --git a/package-lock.json b/package-lock.json
index 7eab0aa..02d69db 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,7 +14,7 @@
         "@hashicorp/github-actions-core": "github:hashicorp/github-actions-core#v1.3.0"
       },
       "devDependencies": {
-        "@types/node": "^24.1.0",
+        "@types/node": "^26.0.0",
         "@types/semver": "^7.5.8",
         "typescript": "^5.5.4"
       }
@@ -110,13 +110,13 @@
       }
     },
     "node_modules/@types/node": {
-      "version": "24.12.0",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-24.12.0.tgz",
-      "integrity": "sha512-GYDxsZi3ChgmckRT9HPU0WEhKLP08ev/Yfcq2AstjrDASOYCSXeyjDsHg4v5t4jOj7cyDX3vmprafKlWIG9MXQ==",
+      "version": "26.0.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.0.0.tgz",
+      "integrity": "sha512-vf2YFi1iY9lHGwNJMs01biZFbKJkrZR1T6/MlzjhJLPdntOHLhTrDSnSVcdtvjihi4VQNlrFRIxLsDBlQpAipA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~7.16.0"
+        "undici-types": "~8.3.0"
       }
     },
     "node_modules/@types/semver": {
@@ -597,9 +597,9 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "7.16.0",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.16.0.tgz",
-      "integrity": "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw==",
+      "version": "8.3.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-8.3.0.tgz",
+      "integrity": "sha512-j375ScV60dom+YkPFIfTLcOiPxkN/buHz5GobjLhixFuANaNs3C9l4GmrWqejgXWJ7BbJcFYpTEUkS1Ge8bpZQ==",
       "dev": true,
       "license": "MIT"
     },
diff --git a/package.json b/package.json
index fda487a..4274b78 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "@hashicorp/github-actions-core": "github:hashicorp/github-actions-core#v1.3.0"
   },
   "devDependencies": {
-    "@types/node": "^24.1.0",
+    "@types/node": "^26.0.0",
     "@types/semver": "^7.5.8",
     "typescript": "^5.5.4"
   },