diff --git a/.github/workflows/apple.yml b/.github/workflows/apple.yml
index 74f3bc6e..ca48d193 100644
--- a/.github/workflows/apple.yml
+++ b/.github/workflows/apple.yml
@@ -60,7 +60,7 @@ jobs:
       - name: Generate build matrix
         id: set-matrix
         run: |
-          uv run ci-matrix.py --platform darwin --labels "${{ steps.get-labels.outputs.labels }}" > matrix.json && echo "matrix=$(cat matrix.json)" >> $GITHUB_OUTPUT
+          uv run ci-matrix.py --platform darwin --labels '${{ steps.get-labels.outputs.labels }}' > matrix.json && echo "matrix=$(cat matrix.json)" >> $GITHUB_OUTPUT
           # Display the matrix for debugging too
           cat matrix.json | jq
 
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index e1126d80..fe824fd9 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -139,7 +139,7 @@ jobs:
       - name: Generate build matrix
         id: set-matrix
         run: |
-          uv run ci-matrix.py --platform linux --labels "${{ steps.get-labels.outputs.labels }}" > matrix.json && echo "matrix=$(cat matrix.json)" >> $GITHUB_OUTPUT
+          uv run ci-matrix.py --platform linux --labels '${{ steps.get-labels.outputs.labels }}' > matrix.json && echo "matrix=$(cat matrix.json)" >> $GITHUB_OUTPUT
           # Display the matrix for debugging too
           cat matrix.json | jq
 
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 6b5723de..abfbff13 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -60,7 +60,7 @@ jobs:
       - name: Generate build matrix
         id: set-matrix
         run: |
-          uv run ci-matrix.py --platform windows --labels "${{ steps.get-labels.outputs.labels }}" > matrix.json && echo "matrix=$(cat matrix.json)" >> $GITHUB_OUTPUT
+          uv run ci-matrix.py --platform windows --labels '${{ steps.get-labels.outputs.labels }}' > matrix.json && echo "matrix=$(cat matrix.json)" >> $GITHUB_OUTPUT
           # Display the matrix for debugging too
           cat matrix.json | jq