diff --git a/.github/workflows/test_dynamic.yml b/.github/workflows/test_dynamic.yml
index a21b405..e39113f 100644
--- a/.github/workflows/test_dynamic.yml
+++ b/.github/workflows/test_dynamic.yml
@@ -14,7 +14,8 @@ jobs:
       - name: Create Matrix
         id: create_matrix
         run: |
-          echo "matrix=$(python create_matrix.py)" >> $GITHUB_OUTPUT
+          python create_matrix.py | tee /tmp/matrix.json
+          echo "matrix=$(cat /tmp/matrix.json)" >> $GITHUB_OUTPUT
 
   # #########################################################
   # Linux
diff --git a/create_matrix.py b/create_matrix.py
index 1851925..2de9a09 100644
--- a/create_matrix.py
+++ b/create_matrix.py
@@ -57,17 +57,20 @@ WINDOWS_CODEBUILD_MATRIX = {
 
 
 def main():
-    json.dump(
-        {
-            "linux": LINUX_MATRIX,
-            # "linux_self_hosted": LINUX_SELF_HOSTED_MATRIX,
-            "linux_self_hosted": False,
-            # "windows": WINDOWS_MATRIX,
-            "windows": False,
-            # "windows_code_build": WINDOWS_CODEBUILD_MATRIX,
-            "windows_code_build": False,
-            "exclude": EXCLUDE,
-        }
+    print(
+        json.dumps(
+            {
+                "linux": LINUX_MATRIX,
+                # "linux_self_hosted": LINUX_SELF_HOSTED_MATRIX,
+                "linux_self_hosted": False,
+                # "windows": WINDOWS_MATRIX,
+                "windows": False,
+                # "windows_code_build": WINDOWS_CODEBUILD_MATRIX,
+                "windows_code_build": False,
+                "exclude": EXCLUDE,
+            }
+        ),
+        indent=2,
     )