diff --git a/spack.yaml b/spack.yaml
index 1459ab87ab0d8ab100f354c748b37285a26b8b1e..50e39ff770b8d60c2fa7eb988a07c53411f1f464 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -59,7 +59,7 @@ spack:
     #- biobb-md
     - apbs
     #- py-pdb2pqr
-    - sda
+    #- sda
     # demo for codejam12
     #- funniest1022
   concretization: together