diff --git a/plugins/opencode/package-lock.json b/plugins/opencode/package-lock.json
index ce08aa017..eb5eeea75 100644
--- a/plugins/opencode/package-lock.json
+++ b/plugins/opencode/package-lock.json
@@ -13,7 +13,7 @@
         "headroom-ai": "^0.22.3"
       },
       "devDependencies": {
-        "@types/node": "^22.10.0",
+        "@types/node": "^26.1.1",
         "tsup": "^8.0.0",
         "typescript": "^5.5.0",
         "vitest": "^4.1.10"
@@ -1381,13 +1381,13 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "22.20.0",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.20.0.tgz",
-      "integrity": "sha512-QWlFW2wf3nTjC13/DqRnBpR4ZO36VJH/JVBkA/vcnmbTBNQIlnObqyqZE1tUR7+Ni23Lda8R1BxMfbXRpCUx5g==",
+      "version": "26.1.1",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.1.1.tgz",
+      "integrity": "sha512-nxAkRSVkN1Y0JC1W8ky/fTfkGsMmcrRsbx+3XoZE+rMOX71kLYTV7fLXpqud1GpbpP5TuffXFqfX7fH2GgZREw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~6.21.0"
+        "undici-types": "~8.3.0"
       }
     },
     "node_modules/@vitest/expect": {
@@ -2834,9 +2834,9 @@
       "license": "MIT"
     },
     "node_modules/undici-types": {
-      "version": "6.21.0",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
-      "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
+      "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/plugins/opencode/package.json b/plugins/opencode/package.json
index 5968b3f01..36ca88179 100644
--- a/plugins/opencode/package.json
+++ b/plugins/opencode/package.json
@@ -37,7 +37,7 @@
     }
   },
   "devDependencies": {
-    "@types/node": "^22.10.0",
+    "@types/node": "^26.1.1",
     "tsup": "^8.0.0",
     "typescript": "^5.5.0",
     "vitest": "^4.1.10"