diff --git a/features/src/cuda/README.md b/features/src/cuda/README.md
index ce7c2fa7..31837004 100644
--- a/features/src/cuda/README.md
+++ b/features/src/cuda/README.md
@@ -15,7 +15,7 @@ A feature to install the NVIDIA CUDA Toolkit
 
 | Options Id | Description | Type | Default Value |
 |-----|-----|-----|-----|
-| version | Version of the CUDA Toolkit to install. | string | 12.8 |
+| version | Version of the CUDA Toolkit to install. | string | 12.9 |
 | cuDNNVersion | Version of cuDNN to install. | string | 8 |
 | installCompilers | Install NVIDIA CUDA Compiler (nvcc) | boolean | true |
 | installProfilers | Install NVIDIA NSight Systems Profiler (nsys) | boolean | true |
diff --git a/features/src/cuda/devcontainer-feature.json b/features/src/cuda/devcontainer-feature.json
index 63378cf8..8250f12d 100644
--- a/features/src/cuda/devcontainer-feature.json
+++ b/features/src/cuda/devcontainer-feature.json
@@ -7,6 +7,7 @@
     "version": {
       "type": "string",
       "proposals": [
+        "12.9",
         "12.8",
         "12.6",
         "12.5",
@@ -24,7 +25,7 @@
         "11.2",
         "11.1"
       ],
-      "default": "12.8",
+      "default": "12.9",
       "description": "Version of the CUDA Toolkit to install."
     },
     "cuDNNVersion": {
diff --git a/features/src/cuda/install.sh b/features/src/cuda/install.sh
index c9a0251b..87b06338 100644
--- a/features/src/cuda/install.sh
+++ b/features/src/cuda/install.sh
@@ -30,7 +30,7 @@ export OSNAME="$(
     echo "$ID$((major - (major % 2)))${minor}";
 )";
 
-VERSION="${CUDA_VERSION:-${VERSION:-12.8.0}}";
+VERSION="${CUDA_VERSION:-${VERSION:-12.9.0}}";
 
 if [[ "$NVARCH" == aarch64 ]]; then
     NVARCH="sbsa";
diff --git a/features/test/_global/cpp_llvm_cuda_nvhpc.sh b/features/test/_global/cpp_llvm_cuda_nvhpc.sh
index b1b8d137..f820f0a8 100644
--- a/features/test/_global/cpp_llvm_cuda_nvhpc.sh
+++ b/features/test/_global/cpp_llvm_cuda_nvhpc.sh
@@ -39,11 +39,11 @@ source dev-container-features-test-lib;
 check "gitlab-cli version" glab --version
 
 # Check CUDA
-check "CUDA version" bash -c "echo '$CUDA_VERSION' | grep '12.8.0'";
+check "CUDA version" bash -c "echo '$CUDA_VERSION' | grep '12.9.0'";
 check "CUDA major version" bash -c "echo '$CUDA_VERSION_MAJOR' | grep '12'";
-check "CUDA minor version" bash -c "echo '$CUDA_VERSION_MINOR' | grep '8'";
+check "CUDA minor version" bash -c "echo '$CUDA_VERSION_MINOR' | grep '9'";
 check "CUDA patch version" bash -c "echo '$CUDA_VERSION_PATCH' | grep '0'";
-check "installed" stat /usr/local/cuda-12.8 /usr/local/cuda;
+check "installed" stat /usr/local/cuda-12.9 /usr/local/cuda;
 check "nvcc exists and is on path" which nvcc;
 
 # Check NVHPC
diff --git a/features/test/_global/cuda_rust.sh b/features/test/_global/cuda_rust.sh
index 444353df..04bdab28 100644
--- a/features/test/_global/cuda_rust.sh
+++ b/features/test/_global/cuda_rust.sh
@@ -40,11 +40,11 @@ source dev-container-features-test-lib;
 >&2 echo "BASH_ENV=$BASH_ENV";
 
 # Check CUDA
-check "CUDA version" bash -c "echo '$CUDA_VERSION' | grep '12.8.0'";
+check "CUDA version" bash -c "echo '$CUDA_VERSION' | grep '12.9.0'";
 check "CUDA major version" bash -c "echo '$CUDA_VERSION_MAJOR' | grep '12'";
-check "CUDA minor version" bash -c "echo '$CUDA_VERSION_MINOR' | grep '8'";
+check "CUDA minor version" bash -c "echo '$CUDA_VERSION_MINOR' | grep '9'";
 check "CUDA patch version" bash -c "echo '$CUDA_VERSION_PATCH' | grep '0'";
-check "installed" stat /usr/local/cuda-12.8 /usr/local/cuda;
+check "installed" stat /usr/local/cuda-12.9 /usr/local/cuda;
 check "nvcc exists and is on path" which nvcc;
 
 # Check Rust
diff --git a/features/test/_global/scenarios.json b/features/test/_global/scenarios.json
index 345aa263..ac1bce87 100644
--- a/features/test/_global/scenarios.json
+++ b/features/test/_global/scenarios.json
@@ -4,7 +4,7 @@
     "features": {
       "rust": {},
       "cuda": {
-        "version": "12.8"
+        "version": "12.9"
       }
     },
     "overrideFeatureInstallOrder": [
@@ -44,7 +44,7 @@
         "version": "16"
       },
       "cuda": {
-        "version": "12.8"
+        "version": "12.9"
       },
       "nvhpc": {
         "version": "24.5"
diff --git a/features/test/cuda/test.sh b/features/test/cuda/test.sh
index b1781da6..82df608e 100644
--- a/features/test/cuda/test.sh
+++ b/features/test/cuda/test.sh
@@ -17,11 +17,11 @@ source dev-container-features-test-lib
 
 # Feature-specific tests
 # The 'check' command comes from the dev-container-features-test-lib.
-check "CUDA version" bash -c "echo '$CUDA_VERSION' | grep '12.8.0'";
+check "CUDA version" bash -c "echo '$CUDA_VERSION' | grep '12.9.0'";
 check "CUDA major version" bash -c "echo '$CUDA_VERSION_MAJOR' | grep '12'";
-check "CUDA minor version" bash -c "echo '$CUDA_VERSION_MINOR' | grep '8'";
+check "CUDA minor version" bash -c "echo '$CUDA_VERSION_MINOR' | grep '9'";
 check "CUDA patch version" bash -c "echo '$CUDA_VERSION_PATCH' | grep '0'";
-check "installed" stat /usr/local/cuda-12.8 /usr/local/cuda
+check "installed" stat /usr/local/cuda-12.9 /usr/local/cuda
 check "nvcc exists and is on path" which nvcc
 
 # Report result
diff --git a/features/test/openmpi/scenarios.json b/features/test/openmpi/scenarios.json
index a6e77236..60cc7871 100644
--- a/features/test/openmpi/scenarios.json
+++ b/features/test/openmpi/scenarios.json
@@ -3,7 +3,7 @@
     "image": "ubuntu:22.04",
     "features": {
       "cuda": {
-        "version": "12.8"
+        "version": "12.9"
       },
       "ucx": {
         "version": "1.15.0"
diff --git a/features/test/ucx/scenarios.json b/features/test/ucx/scenarios.json
index 7439c547..9081459e 100644
--- a/features/test/ucx/scenarios.json
+++ b/features/test/ucx/scenarios.json
@@ -3,7 +3,7 @@
     "image": "ubuntu:22.04",
     "features": {
       "cuda": {
-        "version": "12.8"
+        "version": "12.9"
       },
       "ucx": {
         "version": "1.14.1"
@@ -18,7 +18,7 @@
     "image": "ubuntu:22.04",
     "features": {
       "cuda": {
-        "version": "12.8"
+        "version": "12.9"
       },
       "ucx": {
         "version": "1.15.0-rc3"
diff --git a/windows/image/installers/install-cuda.ps1 b/windows/image/installers/install-cuda.ps1
index 4f4dd033..d07e3082 100644
--- a/windows/image/installers/install-cuda.ps1
+++ b/windows/image/installers/install-cuda.ps1
@@ -1,7 +1,7 @@
 Param(
     [Parameter(Mandatory=$false)]
     [string]
-    $cudaVersion="12.8.0"
+    $cudaVersion="12.9.0"
 )
 
 # Use System.Version to tokenize version
@@ -11,7 +11,7 @@ $major = $version.Major
 $minor = $version.Minor
 $build = $version.Build
 
-# Minimum build is 0, not -1 as default in case "12.8" is passed
+# Minimum build is 0, not -1 as default in case "12.9" is passed
 if ($build -lt 0) {
     $build = 0
 }