diff --git a/.github/workflows/core-ci.yml b/.github/workflows/core-ci.yml
index 97f2fcdd06e..a6e920677a3 100644
--- a/.github/workflows/core-ci.yml
+++ b/.github/workflows/core-ci.yml
@@ -15,7 +15,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest]
-        node-version: ["22.x", "24.x"]
+        node-version: ["22.x", "24.x", "26.x"]
 
     env:
       TYPESPEC_VS_CI_BUILD: true