diff --git a/.github/workflows/cuda.yml b/.github/workflows/cuda.yml
index 1d237f5d8ef..2d30771e75a 100644
--- a/.github/workflows/cuda.yml
+++ b/.github/workflows/cuda.yml
@@ -24,7 +24,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        cuda-version: ["12.6", "12.8", "13.0"]
+        cuda-version: ["12.6", "12.8", "12.9", "13.0"]
 
     name: test-executorch-cuda-build-${{ matrix.cuda-version }}
     uses: pytorch/test-infra/.github/workflows/linux_job_v2.yml@main
diff --git a/install_requirements.py b/install_requirements.py
index 4a8d9ed8870..df26badbef3 100644
--- a/install_requirements.py
+++ b/install_requirements.py
@@ -23,6 +23,7 @@
 SUPPORTED_CUDA_VERSIONS = (
     (12, 6),
     (12, 8),
+    (12, 9),
     (13, 0),
 )