diff --git a/2025-eScience/tutorial-code/system-description/aws-tutorial/system.py b/2025-eScience/tutorial-code/system-description/aws-tutorial/system.py
index b7ed705..26e6e65 100644
--- a/2025-eScience/tutorial-code/system-description/aws-tutorial/system.py
+++ b/2025-eScience/tutorial-code/system-description/aws-tutorial/system.py
@@ -89,10 +89,6 @@ def compute_packages_section(self):
                     "buildable": False,
                 },
                 "gmake": {"externals": [{"spec": "gmake@4.3", "prefix": "/usr"}]},
-                "blas": {
-                    "externals": [{"spec": "blas@0.29.2", "prefix": "/usr"}],
-                    "buildable": False,
-                },
                 "lapack": {
                     "externals": [{"spec": "lapack@0.29.2", "prefix": "/usr"}],
                     "buildable": False,