diff --git a/.github/workflows/backends.yml b/.github/workflows/backends.yml
index a6daac2..131f078 100644
--- a/.github/workflows/backends.yml
+++ b/.github/workflows/backends.yml
@@ -28,7 +28,7 @@ jobs:
           - build: 'avx512'
             defines: '-DGGML_AVX512=ON -DSD_BUILD_SHARED_LIBS=ON'
           - build: 'cuda11'
-            defines: '-DSD_CUBLAS=ON -DSD_BUILD_SHARED_LIBS=ON'
+            defines: '-DSD_CUBLAS=ON -DSD_BUILD_SHARED_LIBS=ON -DCMAKE_CUDA_FLAGS="-allow-unsupported-compiler"'
           - build: 'cuda12'
             defines: '-DSD_CUBLAS=ON -DSD_BUILD_SHARED_LIBS=ON'
           - build: 'rocm5'
@@ -48,7 +48,7 @@ jobs:
         if: ${{ matrix.build == 'cuda11' }}
         uses: Jimver/cuda-toolkit@v0.2.14
         with:
-          cuda: '11.7.1'
+          cuda: '11.8.0'
           method: network
           sub-packages: '["nvcc", "cudart", "cublas", "cublas_dev", "thrust", "visual_studio_integration"]'
           use-github-cache: false
@@ -59,7 +59,7 @@ jobs:
         if: ${{ matrix.build == 'cuda12' }}
         uses: Jimver/cuda-toolkit@v0.2.14
         with:
-          cuda: '12.2.0'
+          cuda: '12.5.1'
           method: network
           sub-packages: '["nvcc", "cudart", "cublas", "cublas_dev", "thrust", "visual_studio_integration"]'
           use-github-cache: false