diff --git a/.github/workflows/run-on-gpu.yml b/.github/workflows/run-on-gpu.yml
old mode 100644
new mode 100755
index 069296a2..1e4370a4
--- a/.github/workflows/run-on-gpu.yml
+++ b/.github/workflows/run-on-gpu.yml
@@ -61,7 +61,7 @@ jobs:
         env:
           PYTHONPATH: ${{ github.workspace }}
           TEST_E2E: true
-          TEST_E2E_COMFY_INSTALL_FLAGS: --nvidia --cuda-version 11.8
+          TEST_E2E_COMFY_INSTALL_FLAGS: --nvidia --cuda-version 12.4
           TEST_E2E_COMFY_LAUNCH_FLAGS_EXTRA: ""
         run: |
           pytest tests/e2e
diff --git a/.github/workflows/test-windows.yml b/.github/workflows/test-windows.yml
old mode 100644
new mode 100755
index 66f04881..63fe2593
--- a/.github/workflows/test-windows.yml
+++ b/.github/workflows/test-windows.yml
@@ -27,7 +27,7 @@ jobs:
           python -m pip install --upgrade pip
           pip install pytest
           pip install -e .
-          comfy --skip-prompt --workspace ./ComfyUI install --fast-deps --nvidia --cuda-version 12.1 --skip-manager
+          comfy --skip-prompt --workspace ./ComfyUI install --fast-deps --nvidia --cuda-version 12.4 --skip-manager
           comfy --workspace ./ComfyUI standalone  --platform windows --proc x86_64
           ls
           comfy standalone --rehydrate --platform windows --proc x86_64
diff --git a/comfy_cli/cmdline.py b/comfy_cli/cmdline.py
index 37dbd61b..b74caa68 100644
--- a/comfy_cli/cmdline.py
+++ b/comfy_cli/cmdline.py
@@ -198,7 +198,7 @@ def install(
             callback=g_gpu_exclusivity.validate,
         ),
     ] = None,
-    cuda_version: Annotated[CUDAVersion, typer.Option(show_default=True)] = CUDAVersion.v12_1,
+    cuda_version: Annotated[CUDAVersion, typer.Option(show_default=True)] = CUDAVersion.v12_4,
     amd: Annotated[
         Optional[bool],
         typer.Option(
diff --git a/comfy_cli/command/install.py b/comfy_cli/command/install.py
old mode 100644
new mode 100755
index 9586dd2e..7a500675
--- a/comfy_cli/command/install.py
+++ b/comfy_cli/command/install.py
@@ -68,7 +68,12 @@ def pip_install_comfyui_dependencies(
                 "torchvision",
                 "torchaudio",
             ]
-            if plat == constants.OS.WINDOWS and cuda_version == constants.CUDAVersion.v12_1:
+            if plat == constants.OS.WINDOWS and cuda_version == constants.CUDAVersion.v12_4:
+                base_command += [
+                    "--extra-index-url",
+                    "https://download.pytorch.org/whl/cu124",
+                ]
+            elif plat == constants.OS.WINDOWS and cuda_version == constants.CUDAVersion.v12_1:
                 base_command += [
                     "--extra-index-url",
                     "https://download.pytorch.org/whl/cu121",
@@ -159,7 +164,7 @@ def execute(
     commit: Optional[str] = None,
     manager_commit: Optional[str] = None,
     gpu: constants.GPU_OPTION = None,
-    cuda_version: constants.CUDAVersion = constants.CUDAVersion.v12_1,
+    cuda_version: constants.CUDAVersion = constants.CUDAVersion.v12_4,
     plat: constants.OS = None,
     skip_torch_or_directml: bool = False,
     skip_requirement: bool = False,
diff --git a/comfy_cli/constants.py b/comfy_cli/constants.py
index 6d59fc6c..50b7a533 100644
--- a/comfy_cli/constants.py
+++ b/comfy_cli/constants.py
@@ -60,6 +60,7 @@ class PROC(str, Enum):
 
 
 class CUDAVersion(str, Enum):
+    v12_4 = "12.4"
     v12_1 = "12.1"
     v11_8 = "11.8"